Journal articleClin Infect Dis · July 23, 2026
BACKGROUND: Ceftriaxone-resistant Escherichia coli infections are increasingly common, partially because of the emergence of E. coli sequence type 131 (ST131), including its subclade C2/H30Rx, which produce extended-spectrum β-lactamases. METHODS: A prospe ...
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Journal articleBMC Infect Dis · July 7, 2026
BACKGROUND: This study provides the first prospective, genomically validated dataset integrated into the global MultiDrug-Resistant Organism (MDRO) Network from the Middle East and North Africa region. To address the substantial gap in antimicrobial resist ...
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Journal articleSci Adv · July 3, 2026
Escherichia coli bloodstream infections are common and associated with high mortality. A key feature of E. coli is the lipopolysaccharide (LPS) O-antigen, which contributes to immune evasion during invasive infection. We analyzed serial isolates from patie ...
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Journal articleCmi Communications · July 1, 2026
Objectives Ceftobiprole demonstrated noninferiority to daptomycin for the treatment of Staphylococcus aureus bacteraemia. A range of post hoc exploratory analyses were undertaken to better inform additional key clinical questions—including how ceftobiprole ...
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Journal articleJACC Adv · July 2026
Infective endocarditis following transcatheter aortic valve replacement and mitral valve transcatheter edge-to-edge repair poses a significant clinical challenge, necessitating a multidisciplinary approach for timely diagnosis and appropriate management th ...
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Journal articleJAMA Netw Open · July 1, 2026
IMPORTANCE: There is limited research comparing patient- and clinician-reported health-related quality of life (HRQOL) in patients with infections. OBJECTIVE: To compare what patients with complicated urinary tract infections (UTIs) describe about their HR ...
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Journal articleJ Infect Dis · June 30, 2026
Clinical and biological heterogeneity in Staphylococcus aureus bacteraemia (SAB) continue to pose significant challenges for the clinical management of individual patients and for research efforts. We contend that investigating SAB as a single disease is i ...
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Journal articleAntimicrob Agents Chemother · June 3, 2026
Novel β-lactam/β-lactamase inhibitors (βL/βLIs) are important therapies for carbapenem-resistant Pseudomonas aeruginosa (CRPA). However, the global extent of resistance to these agents and the impact of resistance on patient outcomes are unclear. We theref ...
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Journal articleOpen Forum Infect Dis · June 2026
BACKGROUND: Desirability of outcome ranking (DOOR), a paradigm for the design, analysis, and interpretation of clinical trials based on patient-centered benefit-risk evaluation, could help inform drug development for acute bacterial skin and skin structure ...
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Journal articleOpen Forum Infect Dis · June 2026
BACKGROUND: Immunocompromised patients are at high risk of pneumonia, with associated poor outcomes. Rapid microbiologic diagnosis is crucial, yet diagnostic yields vary widely. We evaluated the variability in diagnostic yield of usual care testing and pla ...
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Journal articleBMC Infect Dis · May 28, 2026
BACKGROUND: The practice of obtaining follow-up blood cultures (FUBCs) in patients with gram-negative bloodstream infections (GN-BSI) remains controversial. The current study had two goals: (1) to internally validate our earlier findings of decreased morta ...
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Journal articleJAMA · May 26, 2026
IMPORTANCE: Novel blood culture diagnostics provide rapid antimicrobial susceptibility testing (AST) results for bacteria causing bloodstream infections (BSIs) but have unclear clinical impact. OBJECTIVE: To evaluate clinical outcomes of blood culture test ...
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Journal articlemBio · May 13, 2026
Intrinsic Acinetobacter-derived cephalosporinases (ADCs) in Acinetobacter baumannii are AmpC-type β-lactamases that confer resistance to β-lactam agents, typically through insertion sequence (IS) element-driven overexpression. However, the contribution of ...
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Journal articleClin Microbiol Infect · May 2026
OBJECTIVE: Combination antibiotic therapy may improve treatment success for bacterial infections, but bacterial strain-to-strain variability in synergy and its clinical impact remains unclear. This study evaluated whether positive in vitro interactions (sy ...
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Journal articleClin Infect Dis · April 30, 2026
BACKGROUND: Clinical heterogeneity in Staphylococcus aureus bacteremia (SAB) complicates clinical management and research. We have previously identified 5 clinically distinct subphenotypes of SAB associated with differences in outcomes and response to adju ...
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Journal articleJAMA Netw Open · April 1, 2026
IMPORTANCE: Dalbavancin is an alternative to prolonged intravenous therapy for complicated Staphylococcus aureus bacteremia, yet its pharmacokinetics (PK) in patients with this condition are uncertain. OBJECTIVE: To characterize dalbavancin PK and evaluate ...
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Journal articleAntibiotics (Basel) · March 25, 2026
BACKGROUND: Staphylococcus aureus bacteremia (SAB) is a common and life-threatening bloodstream infection often caused by methicillin-resistant SA (MRSA) isolates. Up to 35% of SAB patients fail to clear infection with gold-standard anti-MRSA antibiotics, ...
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Journal articleClin Microbiol Infect · March 2026
OBJECTIVES: Hierarchical composite endpoints (HCEs) are increasingly being used in infectious disease research. In this paper, we illustrate different methods for analysing HCEs in post hoc analyses of the Bacteraemia Antibiotic Length Actually Needed for ...
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Journal articleNat Rev Microbiol · February 2026
Staphylococcus aureus is capable of infecting every organ system in the body and developing resistance to every available antibiotic used to treat it, such as methicillin-resistant S. aureus (commonly referred to as MRSA). This pathogen is characterized by ...
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Journal articleNat Genet · February 2026
The epigenome of human immune cells is shaped by both genetics and environmental factors, yet the relative contributions of these influences remain incompletely characterized. Here we use single-nucleus methylation sequencing and assay for transposase-acce ...
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Journal articleProc Natl Acad Sci U S A · January 20, 2026
β-lactam antibiotics are among the most widely used treatments for bacterial infections, yet therapeutic failure is common even when no genetic resistance is detected. Understanding how host factors influence antibiotic efficacy is critical for improving o ...
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Journal articleAntimicrob Agents Chemother · January 7, 2026
Randomized clinical trials are the gold standard for evaluating the benefits and harms of interventions and yet may not provide the evidence needed to inform medical decision-making, an ultimate goal for clinical research. Commonly used design and analysis ...
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Journal articleCMI Commun · December 2025
BACKGROUND: Previously considered a rare opportunistic pathogen, Serratia is now an emerging cause of bacteremia. We compared the risk factors and outcomes of patients with Serratia bacteremia relative to other Enterobacterales in a cohort of hospitalized ...
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Journal articleJ Infect Dis · November 14, 2025
BACKGROUND: Escherichia coli has an extensive accessory genome, though its role in affecting patient mortality is unknown. METHODS: We performed whole genome sequencing with E. coli bacteremia isolates. Pan-genome analysis was used to identify flexible gen ...
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Journal articleTrials · November 12, 2025
BACKGROUND: Novel, rapid blood culture diagnostics can provide faster antibiotic susceptibility results (AST) compared to standard methods but their impact on clinical outcomes is unclear and not assessed in many prospective clinical trials. METHODS: This ...
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Journal articleJAMA Netw Open · November 3, 2025
IMPORTANCE: Female sex has been identified as a risk factor for mortality in Staphylococcus aureus bloodstream infection (SA-BSI). It is unknown whether this association extends to bloodstream infections with other bacterial species. OBJECTIVE: To investig ...
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Journal articleNat Microbiol · November 2025
Intracellular bacterial reservoirs contribute to antibiotic treatment failure by fostering metabolically dormant persister cells that are highly tolerant to killing. However, strategies to effectively target intracellular persister cells remain limited. He ...
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Journal articleJAMA · September 2, 2025
IMPORTANCE: Staphylococcus aureus, a gram-positive bacterium, is the leading cause of death from bacteremia worldwide, with a case fatality rate of 15% to 30% and an estimated 300 000 deaths per year. OBSERVATIONS: Staphylococcus aureus bacteremia causes m ...
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Journal articleJAMA · August 13, 2025
IMPORTANCE: Dalbavancin is a long-acting intravenous lipoglycopeptide that may be effective for treatment of complicated Staphylococcus aureus bacteremia without requiring long-term intravenous access. OBJECTIVE: To evaluate the efficacy and safety of dalb ...
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Journal articleClin Infect Dis · August 6, 2025
BACKGROUND: Despite the prevalence of intra-abdominal infections, urinary tract infections, and skin/skin structure infections, the relative impact of these syndromes on patient health-related quality of life (HRQoL) is unclear. This qualitative secondary ...
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Journal articleClin Infect Dis · August 6, 2025
This manuscript presents key advances of the Antibacterial Resistance Leadership Group (ARLG) Innovations Task Force, a collaboration focused on improving endpoints for registrational trials of antibacterial drugs, including health-related quality-of-life ...
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Journal articleMicrobiol Spectr · August 5, 2025
Appropriate antibiotic therapy in patients with carbapenem-resistant Klebsiella pneumoniae (CRKp) infections often requires knowledge of resistance mechanisms. Therefore, we aimed to define the clonal diversity, mechanisms of carbapenem resistance, potenti ...
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Journal articleLancet Infect Dis · August 2025
The intention-to-diagnose principle, an analogue to the intention-to-treat principle in clinical trials, protects the foundation for inference in diagnostic test accuracy studies. This foundation provides for robust control of error rates during hypothesis ...
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Journal articleSci Rep · July 29, 2025
With limited treatments for carbapenem-resistant Klebsiella pneumoniae (CRKp), curtailing transmission is critical. We applied a network analysis using epidemiological admission data and bacterial genetics to characterize CRKp spread among patients in 16 a ...
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Journal articleJ Infect Dis · July 11, 2025
BACKGROUND: Despite the global public health threat posed by carbapenem-resistant Enterobacter spp, clinical and molecular epidemiological studies on international isolates remain scarce. Historically, the taxonomy of Enterobacter has been challenging, lim ...
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Journal articleACS Infect Dis · July 11, 2025
The rise of β-lactam resistance necessitates new strategies to combat bacterial infections. We purposefully engineered the β-lactam prodrug AcephPT to exploit β-lactamase activity to selectively suppress resistant bacteria producing extended-spectrum-β-lac ...
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Journal articleOpen Forum Infect Dis · July 2025
BACKGROUND: Infections following colonization of multidrug-resistant gram-negative bacteria (MDR-GNB), particularly Enterobacterales with extended-spectrum beta-lactamases (ESBL-E) or carbapenem-resistant Enterobacterales (CRE), represent a major global he ...
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Journal articleJ Antimicrob Chemother · June 3, 2025
BACKGROUND: Ceftobiprole was non-inferior to comparators for the treatment of Staphylococcus aureus bloodstream infection (bacteraemia) (SAB), acute bacterial skin and skin structure infection (ABSSSI), and community-acquired bacterial pneumonia (CABP), le ...
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Journal articlebioRxiv · May 14, 2025
β-lactam antibiotics are widely used to treat bacterial infections, yet treatment failures frequently occur even without resistance. Here, we show that the innate immune protein calprotectin (CP), released by neutrophils and abundant at infection sites, in ...
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Journal articleVaccine · April 19, 2025
Development of a vaccine against Staphylococcus aureus has proven to be difficult, in no small measure due to our lack of understanding of the human immune response to this pathogen. Because the human immune response is distinct from other species often us ...
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Journal articleAm J Transplant · April 2025
Carbapenem-resistant Enterobacterales (CRE) are an important threat to the health of solid organ transplant recipients (SOTr); data comparing outcomes of SOTr with CRE to non-SOTr with CRE are lacking. A matched cohort study was performed within 2 prospect ...
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Journal articleBiomacromolecules · March 10, 2025
Mesh suture is an emerging technology for closing high-tension soft tissue wounds. However, bulky mesh surgical knots can irritate surrounding tissue and harbor bacteria, leading to an increased risk of infection and palpability. Thus, a degradable knotles ...
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Journal articleEBioMedicine · March 2025
BACKGROUND: Carbapenem-resistant hypervirulent Klebsiella pneumoniae (CR-hvKp) has been increasingly reported worldwide, posing a severe challenge to public health; however, the mechanisms driving its emergence and global dissemination remain unclear. METH ...
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Journal articleBMC Infect Dis · February 18, 2025
BACKGROUND: Staphylococcus aureus bacteremia (SAB) is a prevalent life-threatening infection often caused by methicillin-resistant S. aureus (MRSA). Up to 30% of SAB patients fail to clear infection even with gold-standard anti-MRSA antibiotics. This pheno ...
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Journal articleOpen Forum Infectious Diseases · February 1, 2025
Introduction: Classification of patients with Staphylococcus aureus bacteremia as complicated versus uncomplicated is based on a combination of clinical and microbiologic variables. Whether daily body temperature and common laboratory tests such as C-react ...
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Journal articlebioRxiv · January 4, 2025
The epigenomic landscape of human immune cells is dynamically shaped by both genetic factors and environmental exposures. However, the relative contributions of these elements are still not fully understood. In this study, we employed single-nucleus methyl ...
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Journal articleDrugs · January 2025
Carbapenem-resistant Acinetobacter baumannii has been associated with over three hundred thousand annual deaths globally. It is resistant to most available antibiotics and associated with high morbidity and mortality. No global consensus currently exists f ...
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Journal articleAntimicrob Agents Chemother · December 5, 2024
Ledaborbactam (formerly VNRX-5236), a bicyclic boronate β-lactamase inhibitor with activity against class A, C, and D β-lactamases, is under development as an orally bioavailable etzadroxil prodrug (VNRX-7145) in combination with ceftibuten for the treatme ...
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Journal articleClin Infect Dis · November 22, 2024
BACKGROUND: Staphylococcus aureus bacteremia (SAB) is a clinically heterogeneous disease. The ability to identify subgroups of patients with shared traits (subphenotypes) is an unmet need to allow patient stratification for clinical management and research ...
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Journal articleJ Antimicrob Chemother · November 4, 2024
BACKGROUND: The CDC reported a 35% increase in hospital-onset (HO) carbapenem-resistant Enterobacterales (CRE) infections during the COVID-19 pandemic. We evaluated patient outcomes following HO and community-onset (CO) CRE bloodstream infections (BSI). ME ...
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Journal articleMicroorganisms · November 2, 2024
Untreated infective endocarditis (IE) is uniformly fatal. The practice of combination antibiotic therapy for IE is recommended by treatment guidelines but largely unsupported by high-quality evidence. This study aimed to assess the efficacy of combination ...
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Journal articleAntimicrob Agents Chemother · October 8, 2024
We characterized the molecular determinants of meropenem-vaborbactam (MV) non-susceptibility among non-metallo-β-lactamase-producing KPC-Klebsiella pneumoniae (KPC-KP). Whole-genome sequencing was performed to identify mutations associated with MV non-susc ...
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Journal articleClin Infect Dis · September 26, 2024
BACKGROUND: We aimed to test the hypothesis that development of metastatic infection represents a distinct clinical endpoint from death due to Staphylococcus aureus bacteremia (SAB). METHODS: We conducted a retrospective observational study of adults with ...
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Journal articlebioRxiv · August 3, 2024
The rise of β-lactam resistance necessitates new strategies to combat bacterial infections. We purposefully engineered the β-lactam prodrug AcephPT to exploit β-lactamase activity to selectively suppress resistant bacteria producing extended-spectrum-β-lac ...
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Journal articleOpen Forum Infect Dis · August 2024
BACKGROUND: Plasma microbial cell-free DNA (mcfDNA) sequencing can establish the etiology of multiple infectious syndromes by identifying microbial DNA in plasma. However, data are needed to define the clinical scenarios where this tool offers the highest ...
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Journal articleClin Infect Dis · July 19, 2024
BACKGROUND: Equitable representation of members from historically marginalized groups is important in clinical trials, which inform standards of care. The goal of this study was to characterize the demographics and proportional subgroup reporting and repre ...
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Journal articleClin Infect Dis · July 19, 2024
BACKGROUND: Desirability of outcome ranking (DOOR) is an innovative approach to clinical trial design and analysis that uses an ordinal ranking system to incorporate the overall risks and benefits of a therapeutic intervention into a single measurement. He ...
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Journal articleAntimicrob Agents Chemother · July 9, 2024
NaHCO3 responsiveness is a novel phenotype where some methicillin-resistant Staphylococcus aureus (MRSA) isolates exhibit significantly lower minimal inhibitory concentrations (MIC) to oxacillin and/or cefazolin in the presence of NaHCO3. NaHCO3 responsive ...
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Journal articleClin Infect Dis · June 14, 2024
BACKGROUND: Novel treatments are needed for Staphylococcus aureus bacteremia, particularly for methicillin-resistant S. aureus (MRSA). Exebacase is a first-in-class antistaphylococcal lysin that is rapidly bactericidal and synergizes with antibiotics. METH ...
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Journal articleClin Infect Dis · June 14, 2024
The association between persistent gram-negative bloodstream infection (GN-BSI), or ongoing positive cultures, and recurrent GN-BSI has not been investigated. Among 992 adults, persistent GN-BSI was associated with increased recurrent GN-BSI with the same ...
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Journal articleJ Infect Dis · May 15, 2024
BACKGROUND: Clinical outcomes in bacterial bloodstream infections (BSIs) are influenced by bacterial species, host immunity, and antibiotic therapy. The mechanisms by which such factors influence outcomes are poorly understood. We aimed to identify bacteri ...
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Journal articlePNAS Nexus · May 2024
Methicillin-resistant Staphylococcus aureus (MRSA) bacteremia is a common and life-threatening infection that imposes up to 30% mortality even when appropriate therapy is used. Despite in vitro efficacy determined by minimum inhibitory concentration breakp ...
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Journal articleOpen Forum Infectious Diseases · May 1, 2024
Background: Desirability of outcome ranking (DOOR) is an emerging approach to clinical trial outcome measurement using an ordinal scale to incorporate efficacy and safety endpoints. Methods: We applied a previously validated DOOR endpoint to a cohort of CA ...
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Journal articleClin Infect Dis · April 10, 2024
BACKGROUND: The 2023 Duke-International Society of Cardiovascular Infectious Diseases (ISCVID) criteria for infective endocarditis (IE) were introduced to improve classification of IE for research and clinical purposes. External validation studies are requ ...
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Journal articleClin Infect Dis · March 20, 2024
BACKGROUND: Pneumonia is a common cause of morbidity and mortality, yet a causative pathogen is identified in a minority of cases. Plasma microbial cell-free DNA sequencing may improve diagnostic yield in immunocompromised patients with pneumonia. METHODS: ...
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Journal articleAntimicrob Agents Chemother · March 6, 2024
The activity of a novel β-lactamase inhibitor combination, sulbactam-durlobactam (SUL-DUR), was tested against 87 colistin-resistant and/or cefiderocol-non-susceptible carbapenem-resistant Acinetobacter baumannii clinical isolates collected from U.S. hospi ...
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Journal articleEur J Clin Microbiol Infect Dis · March 2024
PURPOSE: Invasive Escherichia coli disease (IED) encompasses a diverse range of sterile site infections. This study evaluated the feasibility of capturing IED among community-dwelling older adults to inform the implementation of a phase 3 efficacy trial of ...
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Journal articleClin Infect Dis · February 17, 2024
BACKGROUND: Carbapenem-resistant Acinetobacter baumannii (CRAb) is 1 of the most problematic antimicrobial-resistant bacteria. We sought to elucidate the international epidemiology and clinical impact of CRAb. METHODS: In a prospective observational cohort ...
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Journal articleClin Infect Dis · February 17, 2024
BACKGROUND: Hospital-acquired and ventilator-associated bacterial pneumonia (HABP/VABP) are frequently caused by multidrug-resistant organisms. Patient-centered endpoints in clinical trials are needed to develop new antibiotics for HABP/VABP. Desirability ...
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Journal articleJAMA Netw Open · February 5, 2024
IMPORTANCE: Staphylococcus aureus is the leading cause of death due to bacterial bloodstream infection. Female sex has been identified as a risk factor for mortality in S aureus bacteremia (SAB) in some studies, but not in others. OBJECTIVE: To determine w ...
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Journal articleProc Natl Acad Sci U S A · January 16, 2024
Gram-negative bacterial bloodstream infections (GNB-BSI) are common and frequently lethal. Despite appropriate antibiotic treatment, relapse of GNB-BSI with the same bacterial strain is common and associated with poor clinical outcomes and high healthcare ...
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Journal articlePLoS One · 2024
The innate immune system eliminates bloodstream pathogens such as Escherichia coli in part through complement protein deposition and subsequent bacterial death (i.e., "serum killing"). Some E. coli strains have developed mechanisms to resist serum killing, ...
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Journal articleEpigenomics · 2024
Aim: The epigenome influences gene regulation and phenotypes in response to exposures. Epigenome assessment can determine exposure history aiding in diagnosis.Materials & methods: Here we developed and implemented a machine learning algorithm, the exposure ...
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Journal articleJAMA Cardiol · December 1, 2023
IMPORTANCE: Complete hardware removal is a class I recommendation for cardiovascular implantable electronic device (CIED) infection, but practice patterns and outcomes remain unknown. OBJECTIVE: To quantify the number of Medicare patients with CIED infecti ...
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Journal articleInfectious Diseases and Therapy · December 1, 2023
In the original publication of the article, there was an error with the map presented in Fig. 1 and the Graphical Abstract. The correct version of Fig. 1 and the Graphical Abstract are given below. The original article has also been updated. (Figure presen ...
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Journal articleClin Infect Dis · November 11, 2023
BACKGROUND: Hematogenous vertebral osteomyelitis (HVOM) is an incompletely understood complication of Staphylococcus aureus bacteremia (SAB). METHODS: Eligible SAB patients with and without HVOM were prospectively enrolled from 1995 through 2019 at Duke Un ...
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Journal articlemBio · October 31, 2023
Concerns over resistance and safety have been identified in the current treatment regimen for complicated urinary tract infections. Fosfomycin is a drug that is routinely used for the treatment of uncomplicated cystitis. This study shows that fosfomycin co ...
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Journal articleiScience · October 20, 2023
Staphylococcus aureus is a leading human pathogen that frequently causes relapsing infections. The failure of antibiotics to eradicate infection contributes to infection relapse. Host-pathogen interactions have a substantial impact on antibiotic susceptibi ...
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Journal articleClin Infect Dis · October 16, 2023
The Antibacterial Resistance Leadership Group (ARLG) has prioritized infections caused by gram-positive bacteria as one of its core areas of emphasis. The ARLG Gram-positive Committee has focused on studies responding to 3 main identified research prioriti ...
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Journal articleClin Infect Dis · October 16, 2023
Clinical research networks conduct important studies that would not otherwise be performed by other entities. In the case of the Antibacterial Resistance Leadership Group (ARLG), such studies include diagnostic studies using master protocols, controlled ph ...
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Journal articleClin Infect Dis · October 16, 2023
In this overview, we describe important contributions from the Antibacterial Resistance Leadership Group (ARLG) to patient care, clinical trials design, and mentorship while outlining future priorities. The ARLG research agenda is focused on 3 key areas: g ...
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Journal articleClin Infect Dis · October 16, 2023
Addressing the treatment and prevention of antibacterial-resistant gram-negative bacterial infections is a priority area of the Antibacterial Resistance Leadership Group (ARLG). The ARLG has conducted a series of observational studies to define the clinica ...
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Journal articleClin Infect Dis · October 16, 2023
Developing and implementing the scientific agenda of the Antibacterial Resistance Leadership Group (ARLG) by soliciting input and proposals, transforming concepts into clinical trials, conducting those trials, and translating trial data analyses into actio ...
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Journal articleClin Infect Dis · October 13, 2023
BACKGROUND: Despite being the leading cause of mortality from bloodstream infections worldwide, little is known about regional variation in treatment practices for Staphylococcus aureus bacteremia (SAB). The aim of this study was to identify global variati ...
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Journal articleN Engl J Med · October 12, 2023
BACKGROUND: Ceftobiprole is a cephalosporin that may be effective for treating complicated Staphylococcus aureus bacteremia, including methicillin-resistant S. aureus. METHODS: In this phase 3, double-blind, double-dummy, noninferiority trial, adults with ...
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Journal articleClin Transplant · September 2023
BACKGROUND: Little is understood about the risk factors and outcomes from candidemia in thoracic solid organ transplant recipients. METHODS: This is a single-center retrospective cohort study of patients undergoing heart or lung transplant between January ...
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Journal articleClin Microbiol Infect · September 2023
OBJECTIVES: The association of biological female sex with outcome in patients with Staphylococcus aureus bacteraemia remains unresolved. The aim of this study was to determine the independent association of female sex with management and mortality in patie ...
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Journal articleClin Infect Dis · August 22, 2023
BACKGROUND: Desirability of outcome ranking (DOOR) is a novel approach to clinical trial design that incorporates safety and efficacy assessments into an ordinal ranking system to evaluate overall outcomes of clinical trial participants. Here, we derived a ...
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Journal articleClin Infect Dis · August 22, 2023
BACKGROUND: Carbapenemase-producing (CP) Escherichia coli (CP-Ec) are a global public health threat. We aimed to describe the clinical and molecular epidemiology and outcomes of patients from several countries with CP-Ec isolates obtained from a prospectiv ...
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Journal articleClin Infect Dis · August 22, 2023
The microbiology, epidemiology, diagnostics, and treatment of infective endocarditis (IE) have changed significantly since the Duke Criteria were published in 1994 and modified in 2000. The International Society for Cardiovascular Infectious Diseases (ISCV ...
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Journal articleSci Transl Med · August 9, 2023
The UDP-3-O-(R-3-hydroxyacyl)-N-acetylglucosamine deacetylase LpxC is an essential enzyme in the biosynthesis of lipid A, the outer membrane anchor of lipopolysaccharide and lipooligosaccharide in Gram-negative bacteria. The development of LpxC-targeting a ...
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Journal articleClin Microbiol Infect · August 2023
We propose a two-stage clinical trial in patients with Staphylococcus aureus bacteremia (SAB). In Stage 1 we will evaluate metagenomic next generation sequencing from blood as a quantitative biological surrogate for clinical endpoint in patients with SAB, ...
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Journal articleJ Clin Microbiol · July 20, 2023
Escherichia coli sequence type 131 (ST131) is a globally dominant multidrug-resistant clone, although its clinical impact on patients with bloodstream infection (BSI) is incompletely understood. This study aims to further define the risk factors, clinical ...
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Journal articleOpen Forum Infect Dis · July 2023
BACKGROUND: The Combination Antibiotic Therapy for Methicillin-Resistant Staphylococcus aureus (CAMERA2) trial ceased recruitment in July 2018, noting that a higher proportion of patients in the intervention arm (combination therapy) developed acute kidney ...
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Journal articleNat Comput Sci · July 2023
Resolving chromatin-remodeling-linked gene expression changes at cell-type resolution is important for understanding disease states. Here we describe MAGICAL (Multiome Accessibility Gene Integration Calling and Looping), a hierarchical Bayesian approach th ...
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Journal articleClin Infect Dis · April 3, 2023
BACKGROUND: Staphylococcus aureus bacteremia (SAB) disproportionately affects Black patients. The reasons for this disparity are unclear. METHODS: We evaluated a prospectively ascertained cohort of patients with SAB from 1995 to 2020. Clinical characterist ...
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Journal articleClin Microbiol Infect · April 2023
OBJECTIVES: To analyse the adherence and impact of quality-of-care indicators (QCIs) in the management of Staphylococcus aureus bloodstream infection in a prospective and multicentre cohort. METHODS: Analysis of the prospective, multicentre international S ...
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Journal articleInfectious Diseases and Therapy · April 1, 2023
Introduction: Infective endocarditis (IE) has undergone important changes in its epidemiology worldwide. Methods: The study aimed to compare IE epidemiological features and outcomes according to predefined European regions and between two different time pe ...
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Journal articleClin Infect Dis · March 4, 2023
Lack of a gold standard can present a challenge for evaluation of diagnostic test accuracy of some infectious diseases tests, particularly when the test's accuracy potentially exceeds that of its predecessors. This approach may measure agreement with an im ...
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Journal articleLancet Microbe · March 2023
BACKGROUND: Carbapenem-resistant Pseudomonas aeruginosa (CRPA) is a global threat, but the distribution and clinical significance of carbapenemases are unclear. The aim of this study was to define characteristics and outcomes of CRPA infections and the glo ...
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Journal articleAntibiotics (Basel) · February 24, 2023
Methicillin-resistant Staphylococcus aureus (MRSA) is a devastating pathogen responsible for a variety of life-threatening infections. A distinctive characteristic of this pathogen is its ability to persist in the bloodstream for several days despite seemi ...
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Journal articleClin Infect Dis · February 8, 2023
BACKGROUND: The diagnosis of infective endocarditis (IE) can be difficult, particularly if blood cultures fail to yield a pathogen. This study evaluates the potential utility of microbial cell-free DNA (mcfDNA) as a tool to identify the microbial etiology ...
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Journal articleClin Infect Dis · February 8, 2023
BACKGROUND: The causes and clinical characteristics of recurrent gram-negative bacterial bloodstream infections (GNB-BSI) are poorly understood. METHODS: We used a cohort of patients with GNB-BSI to identify clinical characteristics, microbiology, and risk ...
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Journal articleClin Infect Dis · February 8, 2023
BACKGROUND: Traditional end points used in registrational randomized, controlled trials (RCTs) often do not allow for complete interpretation of the full range of potential clinical outcomes. Desirability of outcome ranking (DOOR) is an approach to the des ...
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Journal articleJ Infect · February 2023
OBJECTIVES: We aimed at determining whether specific S. aureus strains cause infective endocarditis (IE) in the course of Staphylococcus aureus bacteraemia (SAB). METHODS: A genome-wide association study (GWAS) including 924 S. aureus genomes from IE (274) ...
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Journal articleInfect Immun · January 24, 2023
Staphylococcus aureus (especially methicillin-resistant S. aureus [MRSA]) is frequently associated with persistent bacteremia (PB) during vancomycin therapy despite consistent susceptibility in vitro. Strategic comparisons of PB strains versus those from v ...
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Journal articleClin Infect Dis · January 13, 2023
BACKGROUND: Carbapenem-resistant Klebsiella pneumoniae (CRKp) is the most prevalent carbapenem-resistant Enterobacterales in the United States. We evaluated CRKp clustering in patients in US hospitals. METHODS: From April 2016 to August 2017, 350 patients ...
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Journal articleJ Infect · January 2023
The current duration of therapy in patients with Staphylococcus aureus bacteremia (SAB) is based on differentiating complicated from uncomplicated disease. While this approach allows clinicians and investigators to group SAB patients into broadly similar c ...
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Journal articleAntimicrob Agents Chemother · December 20, 2022
Scant pharmacokinetic (PK) data are available on ceftazidime-avibactam (CZA) and aztreonam (ATM) in combination, and it is unknown if CZA-ATM exacerbates alanine aminotransferase (ALT)/aspartate aminotransferase (AST) elevations relative to ATM alone. This ...
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Journal articleAntimicrob Agents Chemother · December 20, 2022
This phase I study evaluated the safety of the optimal ceftazidime-avibactam (CZA) with aztreonam (ATM) regimens identified in hollow fiber infection models of MBL-producing Enterobacterales. Eligible healthy subjects aged 18 to 45 years were assigned to o ...
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Journal articleTranspl Infect Dis · December 2022
BACKGROUND: Outcomes from Gram-negative bacteremia (GNB) in solid organ transplant (SOT) recipients are poorly understood. METHODS: This is a single center prospective cohort study comparing the clinical characteristics and outcomes of SOT recipients with ...
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Journal articleOpen Forum Infect Dis · November 2022
BACKGROUND: Ceftriaxone-resistant (CRO-R) Escherichia coli bloodstream infections (BSIs) are common. METHODS: This is a prospective cohort of patients with E coli BSI at 14 United States hospitals between November 2020 and April 2021. For each patient with ...
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Journal articleClin Infect Dis · October 29, 2022
A positive follow-up blood culture for methicillin-resistant Staphylococcus aureus (MRSA) while on seemingly appropriate therapy is a common and ominous development. However, the definition and management of persistent MRSA bacteremia is unstandardized. In ...
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Journal articleJ Antimicrob Chemother · September 30, 2022
BACKGROUND: Community-acquired carbapenem-resistant Enterobacterales (CA-CRE) are an important threat. METHODS: In CRACKLE-2, we defined patients with CA-CRE as admitted from home, without pre-existing conditions, and a positive culture within 48 h of admi ...
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Journal articleClin Infect Dis · September 29, 2022
The modified Duke criteria requires that Enterococcus faecalis bacteremia must be both community-acquired and without known focus in order to be considered a microbiological "Major" diagnostic criterion in the diagnosis of infective endocarditis. We believ ...
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Journal articleJ Infect Dis · September 21, 2022
Antibiotic-associated diarrhea (AAD) is a common side effect of antibiotics. We examined the gastrointestinal microbiota in children treated with β-lactams for community-acquired pneumonia. Data were from 66 children (n = 198 samples), aged 6-71 months, en ...
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Journal articleJ Infect Dis · September 4, 2022
We systematically evaluated randomized-controlled trials (RCTs) for Staphylococcus aureus bacteremia (SAB). There was intertrial heterogeneity in cohort characteristics, including bacteremia source, complicated SAB, and comorbidities. Reporting of cohort c ...
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Journal articleJAMA Netw Open · September 1, 2022
IMPORTANCE: Obtaining follow-up blood cultures (FUBCs) in patients with Staphylococcus aureus bloodstream infection (BSI) is standard practice, although its utility in patients with gram-negative bacterial BSI (GN-BSI) is unclear. OBJECTIVE: To examine whe ...
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Journal articleMicrobiol Spectr · August 31, 2022
Carbapenemase production is one of the leading mechanisms of carbapenem resistance in Gram-negative bacteria. An increase in carbapenemase gene (blaCarb) copies is an important mechanism of carbapenem resistance. No currently available bioinformatics tools ...
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Journal articleClin Infect Dis · August 25, 2022
Exebacase, an antistaphylococcal lysin produced from a bacteriophage-encoded gene, is a promising adjunctive therapy for severe methicillin-resistant Staphylococcus aureus infections. We describe the first infant to receive exebacase, dosing, and pharmacok ...
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Journal articleClin Microbiol Infect · August 2022
OBJECTIVES: This study aimed to investigate whether neutropenia influenced mortality and long-term outcomes of Staphylococcus aureus bloodstream (SAB) infection. METHODS: Data from two prospective, multicentre cohort studies (INSTINCT and ISAC) conducted a ...
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Journal articleOpen Forum Infect Dis · July 2022
BACKGROUND: The prospective identification of patients at high risk for hospital-acquired/ventilator-associated bacterial pneumonia may improve clinical trial feasibility and foster antibacterial development. In a prior study conducted in the United States ...
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Journal articleClin Infect Dis · June 10, 2022
BACKGROUND: Microbial cell-free DNA (mcfDNA) sequencing of plasma can identify the presence of a pathogen in a host. In this study, we evaluated the duration of pathogen detection by mcfDNA sequencing vs conventional blood culture in patients with bacterem ...
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Journal articleOpen Forum Infect Dis · June 2022
BACKGROUND: Although a short course (7 days) of antibiotics has been demonstrated to be noninferior to a conventional course (14 days) in terms of mortality and infectious complications for patients with a Gram-negative bacterial bloodstream infection (GNB ...
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Journal articleTrials · May 16, 2022
BACKGROUND: Staphylococcus aureus bacteremia is a life-threatening infection and leading cause of infective endocarditis, with mortality rates of 15-50%. Treatment typically requires prolonged administration of parenteral therapy, itself associated with hi ...
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Journal articlemBio · April 26, 2022
Pediatric community-acquired pneumonia (CAP) is often treated with 10 days of antibiotics. Shorter treatment strategies may be effective and lead to less resistance. The impact of duration of treatment on the respiratory microbiome is unknown. Data are fro ...
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Journal articlemBio · April 26, 2022
Carbapenem-resistant Klebsiella pneumoniae (CRKp) is an urgent public health threat. Worldwide dissemination of CRKp has been largely attributed to clonal group (CG) 258. However, recent evidence indicates the global emergence of a CRKp CG307 lineage. Hous ...
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Journal articleJAMA Netw Open · April 1, 2022
IMPORTANCE: Bacterial and viral causes of acute respiratory illness (ARI) are difficult to clinically distinguish, resulting in the inappropriate use of antibacterial therapy. The use of a host gene expression-based test that is able to discriminate bacter ...
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Journal articleClin Infect Dis · March 23, 2022
This paper is a call to action for the policies necessary to reduce the burden of antimicrobial resistance, including federal investments in antibiotic stewardship, antibiotic innovation, surveillance, research, diagnostics, infection prevention, the infec ...
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Journal articleAm J Kidney Dis · March 2022
RATIONALE & OBJECTIVE: Staphylococcus aureus (Saureus) bacteremia (SAB) is associated with morbidity and mortality in patients receiving maintenance hemodialysis (HD). We evaluated changes in clinical and bacterial characteristics, and their associations w ...
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Journal articleLancet Infect Dis · March 2022
BACKGROUND: Carbapenem-resistant Klebsiella pneumoniae (CRKP) is a global threat. We therefore analysed the bacterial characteristics of CRKP infections and the clinical outcomes of patients with CRKP infections across different countries. METHODS: In this ...
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Journal articleJAMA Pediatr · March 1, 2022
IMPORTANCE: Childhood community-acquired pneumonia (CAP) is usually treated with 10 days of antibiotics. Shorter courses may be effective with fewer adverse effects and decreased potential for antibiotic resistance. OBJECTIVE: To compare a short (5-day) vs ...
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Journal articleOpen Forum Infect Dis · February 2022
Among patients with methicillin-resistant Staphylococcus aureus bacteremia, vancomycin-associated acute kidney injury increased as a function of the day 2 area under the curve (AUC), even for daily AUCs within the recommended therapeutic range (400-600). F ...
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Journal articleOpen Forum Infect Dis · February 2022
BACKGROUND: We previously conducted a concept elicitation study on the impact of Staphylococcus aureus and gram-negative bacterial bloodstream infections (SAB/GNB) on health-related quality of life (HRQoL) from the patient's perspective and found significa ...
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Journal articlePLoS Comput Biol · February 2022
Antimicrobial resistance presents a significant health care crisis. The mutation F98Y in Staphylococcus aureus dihydrofolate reductase (SaDHFR) confers resistance to the clinically important antifolate trimethoprim (TMP). Propargyl-linked antifolates (PLAs ...
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Journal articleOpen Forum Infect Dis · February 2022
BACKGROUND: Trimethoprim-sulfamethoxazole (TMP-SMX) is considered first-line therapy for Stenotrophomonas maltophilia infections based on observational data from small studies. Levofloxacin has emerged as a popular alternative due to tolerability concerns ...
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Journal articleBMC Microbiol · January 6, 2022
BACKGROUND: Pseudomonas aeruginosa is an opportunistic pathogen that causes a wide range of acute and chronic infections and is frequently associated with healthcare-associated infections. Because of its ability to rapidly acquire resistance to antibiotics ...
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Journal articleTicks Tick Borne Dis · January 2022
Tick-borne rickettsial infections are serious, common, and difficult to diagnose. Among the most important factors leading to failure to diagnose and treat tick-borne rickettsioses effectively is a lack of consideration of the potential diagnosis by primar ...
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Journal articleTranspl Infect Dis · December 2021
INTRODUCTION: Outcomes from Staphylococcus aureus bacteremia (SAB) in solid organ transplant (SOT) recipients are poorly understood. METHODS: This is a prospective cohort study comparing the bacterial genotype and clinical outcomes of SAB among SOT and non ...
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Journal articleClin Infect Dis · November 2, 2021
BACKGROUND: Infective endocarditis (IE) is a rare but serious infection that complicates pregnancy. Little is known about IE management and outcomes in this population. METHODS: The National Readmissions Database was used to obtain data between October 201 ...
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Journal articleCA Cancer J Clin · November 2021
Infection is the second leading cause of death in patients with cancer. Loss of efficacy in antibiotics due to antibiotic resistance in bacteria is an urgent threat against the continuing success of cancer therapy. In this review, the authors focus on rece ...
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Journal articleClin Infect Dis · October 5, 2021
BACKGROUND: Staphylococcus aureus bloodstream infection (SAB) is a common, life-threatening infection. The impact of immunosuppressive agents on the outcome of patients with SAB is incompletely understood. METHODS: Data from 2 large prospective, internatio ...
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Journal articleCrit Care Med · October 1, 2021
OBJECTIVES: Host gene expression signatures discriminate bacterial and viral infection but have not been translated to a clinical test platform. This study enrolled an independent cohort of patients to describe and validate a first-in-class host response b ...
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Journal articleAm Heart J · October 2021
BACKGROUND: The epidemiology, and outcome of infective endocarditis (IE) among solid organ transplant (SOT) recipients is unknown. METHODS: We used data from the 2013-2018 Nationwide Readmissions Database (NRD). IE- and SOT-associated hospitalizations were ...
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Journal articleInfect Immun · September 16, 2021
Staphylococcus aureus is a leading human pathogen that frequently causes chronic and relapsing infections. Antibiotic-tolerant persister cells contribute to frequent antibiotic failure in patients. Macrophages represent an important niche during S. aureus ...
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Journal articleClin Infect Dis · August 16, 2021
In December 2019, the Antibacterial Resistance Leadership Group (ARLG) was awarded funding for another 7-year cycle to support a clinical research network on antibacterial resistance. ARLG 2.0 has 3 overarching research priorities: infections caused by ant ...
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Journal articleJ Med Entomol · July 16, 2021
Lyme disease is the most common tick-borne disease in North America. Though human infection is mostly transmitted in a limited geography, the range has expanded in recent years. One notable area of recent expansion is in the mountainous region of southwest ...
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Journal articleClin Infect Dis · July 15, 2021
BACKGROUND: Although Staphylococcus aureus and gram-negative bacterial bloodstream infections (SAB/GNB) cause substantial morbidity, little is known regarding patient perceptions' of their impact on quality of life (QOL). Guidance for assessing QOL and dis ...
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Journal articleClin Infect Dis · June 15, 2021
In this article, the editors of Clinical Infectious Diseases review some of the most important lessons they have learned about the epidemiology, clinical features, diagnosis, treatment and prevention of SARS-CoV-2 infection and identify essential questions ...
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Journal articleClin Infect Dis · June 1, 2021
BACKGROUND: To understand the clinical, bacterial, and host characteristics associated with recurrent Staphylococcus aureus bacteremia (R-SAB), patients with R-SAB were compared to contemporaneous patients with a single episode of SAB (S-SAB). METHODS: All ...
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Journal articleAm J Transplant · June 2021
We undertook a prospective, matched cohort study of patients with Staphylococcus aureus bacteremia (SAB) and gram-negative bacteremia (GNB) to compare the characteristics, outcomes, and chemokine and cytokine response in transplant recipients to immunocomp ...
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Journal articleJ Am Coll Cardiol · April 6, 2021
BACKGROUND: Infective endocarditis (IE) is a common and serious complication in patients receiving chronic hemodialysis (HD). OBJECTIVES: This study sought to investigate whether there are significant differences in complications, cardiac surgery, relapses ...
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Journal articleJ Clin Microbiol · March 19, 2021
The cefazolin inoculum effect (CzIE) has been associated with therapeutic failures and mortality in invasive methicillin-susceptible Staphylococcus aureus (MSSA) infections. A diagnostic test to detect the CzIE is not currently available. We developed a ra ...
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Journal articleProc Natl Acad Sci U S A · March 9, 2021
Persistent methicillin-resistant Staphylococcus aureus (MRSA) bacteremia is life threatening and occurs in up to 30% of MRSA bacteremia cases despite appropriate antimicrobial therapy. Isolates of MRSA that cause antibiotic-persistent methicillin-resistant ...
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Journal articleAntimicrob Agents Chemother · February 17, 2021
Intravenous (i.v.) minocycline is increasingly used to treat infections caused by multidrug-resistant (MDR) Acinetobacter baumannii Despite its being approved nearly 50 years ago, published information on its pharmacokinetic (PK) profile is limited. This m ...
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Journal articleClin Infect Dis · December 3, 2020
BACKGROUND: Pharyngeal and rectal Neisseria gonorrhoeae and Chlamydia trachomatis play important roles in infection and antibacterial resistance transmission, but no US Food and Drug Administration (FDA)-cleared assays for detection at these sites existed ...
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Journal articleChest · December 2020
BACKGROUND: Pneumonia is the leading infection-related cause of death. The use of simple clinical criteria and contemporary epidemiology to identify patients at high risk of nosocomial pneumonia should enhance prevention efforts and facilitate development ...
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Journal articleLancet Infect Dis · December 2020
BACKGROUND: Staphylococcus aureus persistent bacteraemia is only vaguely defined and the effect of different durations of bacteraemia on mortality is not well established. Our primary aim was to analyse mortality according to duration of bacteraemia and to ...
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Journal articleEur J Clin Microbiol Infect Dis · November 2020
The complement system is a vital component of the innate immune system, though its role in bacteremia is poorly understood. We present complement levels in Staphylococcus aureus bacteremia (SAB) and Gram-negative bacteremia (GNB) and describe observed asso ...
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Journal articleInfect Immun · September 18, 2020
Antibody autoreactivity against bactericidal/permeability-increasing protein (BPI) is strongly associated with Pseudomonas aeruginosa infection in cystic fibrosis (CF), non-CF bronchiectasis (BE), and chronic obstructive pulmonary disease (COPD). We examin ...
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Journal articleJ Antimicrob Chemother · September 1, 2020
BACKGROUND: MBL-producing strains of Enterobacteriaceae are a major public health concern. We sought to define optimal combination regimens of ceftazidime/avibactam with aztreonam in a hollow-fibre infection model (HFIM) of MBL-producing strains of Escheri ...
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Journal articleJ Clin Microbiol · August 24, 2020
Enterobacter aerogenes was recently renamed Klebsiella aerogenes This study aimed to identify differences in clinical characteristics, outcomes, and bacterial genetics among patients with K. aerogenes versus Enterobacter species bloodstream infections (BSI ...
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Journal articleProc Natl Acad Sci U S A · August 18, 2020
In biology, it is often critical to determine the identity of an organism and phenotypic traits of interest. Whole-genome sequencing can be useful for this but has limited power for trait prediction. However, we can take advantage of the inherent informati ...
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Journal articleClin Microbiol Infect · July 2020
OBJECTIVES: The role of follow-up blood cultures (FUBCs) in the management of Gram-negative bacteraemia (GNB) is poorly understood. We aimed to determine the utility of FUBCs in identifying patients with increased mortality risk. METHODS: An observational ...
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Journal articleJ Clin Invest · July 1, 2020
BACKGROUNDNovel therapeutic approaches are critically needed for Staphylococcus aureus bloodstream infections (BSIs), particularly for methicillin-resistant S. aureus (MRSA). Exebacase, a first-in-class antistaphylococcal lysin, is a direct lytic agent tha ...
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Journal articleLancet Infect Dis · June 2020
BACKGROUND: Carbapenem-resistant Enterobacterales (CRE) are a global threat. We aimed to describe the clinical and molecular characteristics of Centers for Disease Control and Prevention (CDC)-defined CRE in the USA. METHODS: CRACKLE-2 is a prospective, mu ...
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Journal articleJ Mol Diagn · June 2020
Chlamydia trachomatis and Neisseria gonorrhoeae infections in the rectum and pharynx are important extragenital reservoirs of infection. Few assays approved by the US Food and Drug Administration are commercially available to diagnose pharyngeal or rectal ...
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Journal articleJACC Clin Electrophysiol · June 2020
OBJECTIVES: The goal of this study was to assess the utility of transvenous lead extraction for cardiovascular implantable electronic device (CIED) infection in patients with a left ventricular assist device (LVAD). BACKGROUND: The use of transvenous lead ...
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Journal articleOpen Forum Infect Dis · June 2020
Historically, intravenous (IV) antibiotics have been the cornerstone of treatment for uncomplicated Staphylococcus aureus bacteremia (SAB). However, IV antibiotics are expensive, increase the rates of hospital readmission, and can be associated with cathet ...
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Journal articleClin Microbiol Infect · May 2020
OBJECTIVES: The significance of isolating Staphylococus epidermidis from a blood culture is highly heterogeneous, ranging from contamination to an indication of a serious infection. Herein we sought to determine whether there is a relationship between S. e ...
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Journal articleOpen Forum Infect Dis · May 2020
Cefiderocol is a novel catechol siderophore cephalosporin antibiotic developed to treat resistant gram-negative infections. We describe its successful use as rescue therapy, combined with surgical debridement, to treat a patient with osteomyelitis due to e ...
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Journal articleJAMA Netw Open · May 1, 2020
IMPORTANCE: Information to be included in advance informed consent forms for health care-associated pneumonia treatment trials remains to be determined. OBJECTIVE: To identify and determine how to describe information to be included in an advance informed ...
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Journal articleAntimicrob Agents Chemother · April 21, 2020
Addition of sodium bicarbonate (NaHCO3) to standard antimicrobial susceptibility testing medium reveals certain methicillin-resistant Staphylococcus aureus (MRSA) strains to be highly susceptible to β-lactams. We investigated the prevalence of this phenoty ...
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Journal articleClin Infect Dis · April 15, 2020
BACKGROUND: Predicting mortality risk in patients is important in research settings. The Pitt bacteremia score (PBS) is commonly used as a predictor of early mortality risk in patients with bloodstream infections (BSIs). We determined whether the PBS predi ...
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Journal articleClin Infect Dis · April 10, 2020
BACKGROUND: Vancomycin is the most commonly administered antibiotic in hospitalized patients, but optimal exposure targets remain controversial. To clarify the therapeutic exposure range, this study evaluated the association between vancomycin exposure and ...
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Journal articleAntimicrob Agents Chemother · February 21, 2020
Higher vancomycin MICs have been associated with more complicated courses and higher mortality rates in patients with Staphylococcus aureus bacteremia and infective endocarditis (IE). The aim of this study was to investigate whether the strains belonging t ...
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Journal articleJAMA · February 11, 2020
IMPORTANCE: Methicillin-resistant Staphylococcus aureus (MRSA) bacteremia is associated with mortality of more than 20%. Combining standard therapy with a β-lactam antibiotic has been associated with reduced mortality, although adequately powered randomize ...
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Journal articleJ Hosp Infect · February 2020
Mycobacterial infection-related morbidity and mortality in patients following cardiopulmonary bypass surgery is high and there is a growing need for a consensus-based expert opinion to provide international guidance for diagnosing, preventing and treating ...
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Journal articleFEMS Microbiol Rev · January 1, 2020
Invasive Staphylococcus aureus infections are a leading cause of morbidity and mortality in both hospital and community settings, especially with the widespread emergence of virulent and multi-drug resistant methicillin-resistant S. aureus strains. There i ...
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Journal articleFuture Microbiol · January 2020
Although Staphylococcus aureus is a common cause of bacteremia, treatment options are limited. The need for new therapies is particularly urgent for methicillin-resistant S. aureus bacteremia (SAB). Ceftobiprole is an advanced-generation, broad-spectrum ce ...
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Journal articleSci Adv · January 2020
Plasmids are key vehicles of horizontal gene transfer (HGT), mobilizing antibiotic resistance, virulence, and other traits among bacterial populations. The environmental and genetic forces that drive plasmid transfer are poorly understood, however, due to ...
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Journal articleClin Transl Immunology · 2020
OBJECTIVES: To identify risk stratification biomarkers to enrich for the subset of Staphylococcus aureus bacteraemia patients who develop deep-seated tissue infections with high morbidity and mortality to guide clinical trial enrolment and clinical managem ...
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Journal articleFront Microbiol · 2020
Klebsiella pneumoniae is a common cause of sepsis and is particularly associated with healthcare-associated infections. New strategies are needed to prevent or treat infections due to the emergence of multi-drug resistant K. pneumoniae. The goal of this st ...
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Journal articleClin Infect Dis · November 13, 2019
BACKGROUND: We conducted a longitudinal study to evaluate changes in the clinical presentation and epidemiology of Staphylococcus aureus bacteremia (SAB) in an academic, US medical center. METHODS: Consecutive patients with monomicrobial SAB were enrolled ...
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Journal articleJAMA Netw Open · October 2, 2019
IMPORTANCE: Clostridioides difficile infection (CDI) remains a leading cause of health care facility-associated infection. A greater understanding of the regional epidemiologic profile of CDI could inform targeted prevention strategies. OBJECTIVES: To asse ...
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Journal articleProc Natl Acad Sci U S A · October 1, 2019
The role of the host in development of persistent methicillin-resistant Staphylococcus aureus (MRSA) bacteremia is not well understood. A cohort of prospectively enrolled patients with persistent methicillin-resistant S. aureus bacteremia (PB) and resolvin ...
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Journal articleEBioMedicine · October 2019
BACKGROUND: Distinguishing bacterial and viral respiratory infections is challenging. Novel diagnostics based on differential host gene expression patterns are promising but have not been translated to a clinical platform nor extensively tested. Here, we v ...
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Journal articleSci Rep · August 12, 2019
Fibronectin-binding protein A (FnBPA), a protein displayed on the outer surface of Staphylococcus aureus, has a structured A-domain that binds fibrinogen (Fg) and a disordered repeat-region that binds fibronectin (Fn). Amino acid substitutions in Fn-bindin ...
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Journal articleJAMA Netw Open · August 2, 2019
IMPORTANCE: The feasibility of core Infectious Diseases Society of America-recommended antimicrobial stewardship interventions in community hospitals is unknown. OBJECTIVE: To determine the feasibility and results of implementing 2 core stewardship interve ...
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Journal articlePLoS Comput Biol · July 2019
Persistent bacteremia caused by Staphylococcus aureus (SA), especially methicillin-resistant SA (MRSA), is a significant cause of morbidity and mortality. Despite susceptibility phenotypes in vitro, persistent MRSA strains fail to clear with appropriate an ...
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Journal articleClin Infect Dis · May 17, 2019
BACKGROUND: Overcoming β-lactam resistance in pathogens such as Pseudomonas aeruginosa is a major clinical challenge. Rapid molecular diagnostics (RMDs) have the potential to inform selection of empiric therapy in patients infected by P. aeruginosa. METHOD ...
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Journal articleClin Infect Dis · May 17, 2019
Patient management is not based on a single decision. Rather, it is dynamic: based on a sequence of decisions, with therapeutic adjustments made over time. Adjustments are personalized: tailored to individual patients as new information becomes available. ...
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Journal articleClin Infect Dis · May 2, 2019
BACKGROUND: Desirability of outcome ranking (DOOR) is an innovative approach in clinical trials to evaluate the global benefits and risks of an intervention. We developed and validated a DOOR endpoint for Staphylococcus aureus bloodstream infection (BSI) t ...
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Journal articleClin Infect Dis · April 24, 2019
BACKGROUND: Staphylococcus aureus is a leading cause of bacteremia, yet there remains a significant knowledge gap in the identification of relevant biomarkers that predict clinical outcomes. Heterogeneity in the host response to invasive S. aureus infectio ...
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Journal articleNat Rev Microbiol · April 2019
Methicillin-resistant Staphylococcus aureus (MRSA) is one of the most successful modern pathogens. The same organism that lives as a commensal and is transmitted in both health-care and community settings is also a leading cause of bacteraemia, endocarditi ...
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Journal articleHemodial Int · April 2019
INTRODUCTION: Staphylococcus aureus bacteremia (SAB) is a high-risk infection and feared complication related to hemodialysis. This study aimed to investigate incidence and risk factors for SAB depending on hemodialysis access type. METHODS: The Danish Nat ...
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Journal articleOpen Forum Infect Dis · April 2019
BACKGROUND: Staphylococcus aureus is a leading global cause of bacteremia that can cause invasive tissue infections with high morbidity and mortality despite appropriate antibiotic therapy. Clinicians lack sufficient tools to rapidly identify patients with ...
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Journal articleClin Infect Dis · February 15, 2019
Clinical trials for Staphylococcus aureus bloodstream infections (SAB) are broadly grouped into 2 categories: registrational trials intended to support regulatory approval of antibiotics for the treatment of SAB and strategy trials intended to inform clini ...
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Journal articleOpen Forum Infect Dis · January 2019
In the Consortium on Resistance Against Carbapenems in Klebsiella and other Enterobacteriaceae (CRACKLE), trimethoprim-sulfamethoxazole (TMP-SMX) had a limited role in the treatment of less severe carbapenem-resistant Enterobacteriaceae (CRE) infections, e ...
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Journal articleClin Transl Immunology · 2019
OBJECTIVE: To understand the relationships of Staphylococcus aureus (SA) bacteremic pneumonia (SABP) outcome with patient-specific and SA-specific variables. METHODS: We analysed SA bloodstream isolates and matching sera in SABP patients by sequencing SA i ...
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Journal articleJAMA Netw Open · December 7, 2018
IMPORTANCE: Better treatment options are needed in life-threatening infections, including health care-associated pneumonia. Enrolling patients in antibacterial clinical trials before diagnosis may circumvent existing time-to-enrollment constraints. However ...
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Journal articleProc Natl Acad Sci U S A · November 20, 2018
Staphylococcus aureus is the leading cause of skin and skin structure infection (SSSI), a primary portal of entry for invasive infection. Our prior studies discovered a role for protective innate memory against recurrent methicillin-resistant S. aureus (MR ...
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Journal articleClin Infect Dis · November 13, 2018
BACKGROUND: Bacteremia caused by extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae (ESBL-E) is associated with inadequate empirical therapy and substantial mortality in neutropenic patients. Strategies are needed to identify neutropenic pat ...
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Journal articleClin Infect Dis · November 13, 2018
A strong synergy can result from China-US antimicrobial resistance (AMR) collaborations given similarities and differences between their respective healthcare systems and research infrastructures. The Antibacterial Resistance Leadership Group has employed ...
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Journal articleMicrob Genom · November 2018
Group A Streptococcus (GAS) is classified on the basis of the sequence of the gene encoding the M protein (emm) and the patterns into which emm types are grouped. We discovered a novel emm pattern in emm4 GAS, historically considered pattern E, arising fro ...
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Journal articlePLoS Genet · October 2018
The role of host genetic variation in the development of complicated Staphylococcus aureus bacteremia (SAB) is poorly understood. We used whole exome sequencing (WES) to examine the cumulative effect of coding variants in each gene on risk of complicated S ...
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Journal articleJAMA · September 25, 2018
IMPORTANCE: The appropriate duration of antibiotics for staphylococcal bacteremia is unknown. OBJECTIVE: To test whether an algorithm that defines treatment duration for staphylococcal bacteremia vs standard of care provides noninferior efficacy without in ...
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Journal articleJ Comput Biol · July 2018
Computational protein design (CPD) algorithms that compute binding affinity, Ka, search for sequences with an energetically favorable free energy of binding. Recent work shows that three principles improve the biological accuracy of CPD: ensemble-based des ...
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Journal articleBiofouling · July 2018
Candida albicans is a leading cause of catheter-associated urinary tract infections and elimination of these biofilm-based infections without antifungal agents would constitute a significant medical advance. A novel urinary catheter prototype that utilizes ...
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Journal articleCell Rep · June 19, 2018
Salmonella enterica is an important foodborne pathogen that uses secreted effector proteins to manipulate host pathways to facilitate survival and dissemination. Different S. enterica serovars cause disease syndromes ranging from gastroenteritis to typhoid ...
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Journal articleClin Infect Dis · March 19, 2018
Clinical trials with adaptive designs use data that accumulate during the course of the study to modify study elements in a prespecified manner. The goal is to provide flexibility such that a trial can serve as a definitive test of its primary hypothesis, ...
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Journal articleOpen Forum Infect Dis · March 2018
BACKGROUND: Penicillin allergy frequently impacts antibiotic choice. As beta-lactams are superior to vancomycin in treating methicillin-susceptible Staphylococcus aureus (MSSA) bacteremia, we examined the effect of reported penicillin allergy on clinical o ...
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Journal articleMMWR Morb Mortal Wkly Rep · February 9, 2018
Rabies is an acute encephalitis that is nearly always fatal. It is caused by infection with viruses of the genus Lyssavirus, the most common of which is Rabies lyssavirus. The Council of State and Territorial Epidemiologists (CSTE) defines a confirmed huma ...
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Journal articleAnnu Rev Med · January 29, 2018
Recent advances in the field of infectious disease diagnostics have given rise to a number of host- and pathogen-centered diagnostic approaches. Most diagnostic approaches in contemporary infectious disease focus on pathogen detection and characterization. ...
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Journal articleClin Infect Dis · January 6, 2018
BACKGROUND: The efficacy of ceftazidime-avibactam-a cephalosporin-β-lactamase inhibitor combination with in vitro activity against Klebsiella pneumoniae carbapenemase-producing carbapenem-resistant Enterobacteriaceae (CRE)-compared with colistin remains un ...
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Journal articlePLoS One · 2018
BACKGROUND: Identifying patients undergoing cardiothoracic surgery at high risk of Staphylococcus aureus surgical site infection (SSI) is a prerequisite for implementing effective preventive interventions. The objective of this study was to develop a risk ...
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Journal articleJ Intensive Care · 2018
BACKGROUND: Sepsis biomarker panels that provide diagnostic and prognostic discrimination in sepsis patients would be transformative to patient care. We assessed the mortality prediction and diagnostic discriminatory accuracy of two biomarkers reflective o ...
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Journal articlePLoS One · 2018
Inactivating mutations in the control of virulence two-component regulatory system (covRS) often account for the hypervirulent phenotype in severe, invasive group A streptococcal (GAS) infections. As CovR represses production of the anti-phagocytic hyaluro ...
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Journal articleClin J Am Soc Nephrol · November 7, 2017
BACKGROUND AND OBJECTIVES: Endocarditis is a serious complication in patients treated with RRT. The study aimed to examine incidence and risk factors of endocarditis in patients with ESRD. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: The Danish National ...
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Journal articleMicrob Genom · November 2017
Most Staphylococcus aureus isolates can cause invasive disease given the right circumstances, but it is unknown if some isolates are more likely to cause severe infections than others. S. aureus bloodstream isolates from 120 patients with definite infectiv ...
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Journal articleClin Infect Dis · October 16, 2017
African tick bite fever is the most commonly encountered travel-associated rickettsiosis, occurring in as many as 5% of travelers returning from rural subequatorial Africa. This case report illustrates that rifampin represents an effective alternative to d ...
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Journal articleInfect Control Hosp Epidemiol · October 2017
OBJECTIVE To determine whether antimicrobial-impregnated textiles decrease the acquisition of pathogens by healthcare provider (HCP) clothing. DESIGN We completed a 3-arm randomized controlled trial to test the efficacy of 2 types of antimicrobial-impregna ...
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Journal articleClin Microbiol Infect · August 2017
OBJECTIVES: To define standardized endpoints to aid the design of trials that compare antibiotic therapies for bloodstream infections (BSI). METHODS: Prospective studies, randomized trials or registered protocols comparing antibiotic therapies for BSI, pub ...
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Journal articleClin Microbiol Infect · August 2017
OBJECTIVES: Left-sided methicillin-susceptible Staphylococcus aureus (MSSA) endocarditis treated with cloxacillin has a poorer prognosis when the vancomycin minimum inhibitory concentration (MIC) is ≥1.5 mg/L. We aimed to validate this using the Internatio ...
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Journal articleAntimicrob Agents Chemother · June 2017
The impact of bacterial species on outcome in bloodstream infections (BSI) is incompletely understood. We evaluated the impact of bacterial species on BSI mortality, with adjustment for patient, bacterial, and treatment factors. From 2002 to 2015, all adul ...
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Journal articleAntimicrob Agents Chemother · April 2017
Based upon knowledge of the hydrolytic profile of major β-lactamases found in Gram-negative bacteria, we tested the efficacy of the combination of ceftazidime-avibactam (CAZ-AVI) with aztreonam (ATM) against carbapenem-resistant enteric bacteria possessing ...
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Journal articleClin Infect Dis · March 15, 2017
BACKGROUND: Polymyxins including colistin are an important "last-line" treatment for infections caused by carbapenem-resistant Klebsiella pneumoniae (CRKp). Increasing use of colistin has led to resistance to this cationic antimicrobial peptide. METHODS: A ...
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Journal articleClin Infect Dis · March 15, 2017
The Leadership and Operations Center (LOC) is responsible for facilitating, coordinating, and implementing the Antibacterial Resistance Leadership Group (ARLG) scientific agenda by engaging thought leaders; soliciting research proposals; and developing the ...
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Journal articleClin Infect Dis · March 15, 2017
The Antibacterial Resistance Leadership Group (ARLG), with funding from the National Institute of Allergy and Infectious Diseases of the National Institutes of Health, was created in June 2013. Its mission is to develop, prioritize, and implement a clinica ...
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Journal articleAntimicrob Agents Chemother · March 2017
The clinical and economic impacts of bloodstream infections (BSI) due to multidrug-resistant (MDR) Gram-negative bacteria are incompletely understood. From 2009 to 2015, all adult inpatients with Gram-negative BSI at our institution were prospectively enro ...
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Journal articleGenes Immun · March 2017
The incidence of Staphylococcus aureus bacteremia (SAB) is significantly higher in African American (AA) than in European-descended populations. We used admixture mapping (AM) to test the hypothesis that genomic variations with different frequencies in Eur ...
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Journal articleClin Infect Dis · February 1, 2017
New diagnostics are urgently needed to address emerging antimicrobial resistance. The Antibacterial Resistance Leadership Group proposes a strategy called MASTERMIND (Master Protocol for Evaluating Multiple Infection Diagnostics) for advancement of infecti ...
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Journal articleCurr Top Microbiol Immunol · 2017
Bacteremia and infective endocarditis (IE) are important causes of morbidity and mortality associated with Staphylococcus aureus infections. Increasing exposure to healthcare, invasive procedures, and prosthetic implants has been associated with a rising i ...
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Journal articleJ Clin Microbiol · January 2017
The widespread dissemination of carbapenem-resistant Acinetobacter spp. has created significant therapeutic challenges. At present, rapid molecular diagnostics (RMDs) that can identify this phenotype are not commercially available. Two RMD platforms, PCR c ...
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Journal articleOpen Forum Infect Dis · 2017
BACKGROUND: Most Lyme disease cases in the Midwestern United States are reported in Minnesota and Wisconsin. In recent years, however, a widening geographic extent of Lyme disease has been noted with evidence of expansion eastwards into Michigan and neighb ...
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Journal articlePLoS One · 2017
We previously showed that chromosome 8 of A/J mice was associated with susceptibility to S. aureus infection. However, the specific genes responsible for this susceptibility are unknown. Chromosome substitution strain 8 (CSS8) mice, which have chromosome 8 ...
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Journal articleOpen Forum Infect Dis · 2017
BACKGROUND: The species-specific risk of cardiac device-related infection (CDRI) among bacteremic patients is incompletely understood. METHODS: We conducted a prospective cohort study of hospitalized patients from October 2002 to December 2014 with a cardi ...
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Journal articleOpen Forum Infect Dis · 2017
BACKGROUND: This study was performed to characterize the epidemiology, management, and outcomes of skin and soft tissue infection (SSTI) and colonization due to carbapenem-resistant Enterobacteriaceae (CRE). METHODS: Patients from the Consortium on Resista ...
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Journal articleOpen Forum Infect Dis · 2017
BACKGROUND: Patients on chronic intermittent renal replacement therapy (RRT) are at risk for infection with carbapenem-resistant Enterobacteriaceae (CRE). However, the impact of RRT on outcomes after CRE infections remains to be defined. Here we perform a ...
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Journal articleOpen Forum Infect Dis · 2017
Skin and soft tissue infections (SSTI) affect millions of people globally, which represents a significant burden on ambulatory care and hospital settings. The role of sulfamethoxazole-trimethoprim (SXT) in SSTI treatment, particularly when group A Streptoc ...
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Journal articleOpen Forum Infect Dis · September 2016
We report the case of a 60-year-old man with septic shock due to Capnocytophaga canimorsus that was diagnosed in 24 hours by a novel whole-genome next-generation sequencing assay. This technology shows great promise in identifying fastidious pathogens, and ...
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Journal articleNat Rev Dis Primers · September 1, 2016
Infective endocarditis (IE) is a rare, life-threatening disease that has long-lasting effects even among patients who survive and are cured. IE disproportionately affects those with underlying structural heart disease and is increasingly associated with he ...
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Journal articleClin Infect Dis · August 15, 2016
The economics of antibiotics can be improved by infectious diseases-specific clinical trial networks. While developers would still need to implement an independent phase 1 program as well as studies focused on highly resistant pathogens, standardized proce ...
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Journal articleClin Infect Dis · August 15, 2016
BACKGROUND: The etiology of hospital-acquired or ventilator-associated bacterial pneumonia (HABP/VABP) is often multidrug-resistant infections. The evaluation of new antibacterial drugs for efficacy in this population is important, as many antibacterial dr ...
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Journal articleJ Infect Dis · June 15, 2016
BACKGROUND: Although human immunodeficiency virus (HIV)-infected persons are at increased risk for major cardiovascular events, short-term prognosis after these events is unclear. METHODS: To determine the association between HIV infection and acute myocar ...
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Journal articleClin Microbiol Infect · June 2016
Patients infected or colonized with carbapenem-resistant Klebsiella pneumoniae (CRKp) are often chronically and acutely ill, which results in substantial mortality unrelated to infection. Therefore, estimating excess mortality due to CRKp infections is cha ...
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Journal articleTrials · March 31, 2016
BACKGROUND: Methicillin-resistant Staphylococcus aureus (MRSA) bacteraemia is a serious infection resulting in 20-50 % 90-day mortality. The limitations of vancomycin, the current standard therapy for MRSA, make treatment difficult. The only other approved ...
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Journal articleJ Infect Dis · March 1, 2016
BACKGROUND: Staphylococcus aureus can cause life-threatening infections. Human susceptibility to S. aureus infection may be influenced by host genetic variation. METHODS: A genome-wide association study (GWAS) in a large health plan-based cohort included b ...
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Journal articleAnn Am Thorac Soc · March 2016
RATIONALE: Limitations in methods for the rapid diagnosis of hospital-acquired infections often delay initiation of effective antimicrobial therapy. New diagnostic approaches offer potential clinical and cost-related improvements in the management of these ...
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Journal articleInfect Control Hosp Epidemiol · March 2016
BACKGROUND: Various transmission routes contribute to spread of carbapenem-resistant Klebsiella pneumoniae (CRKP) in hospitalized patients. Patients with readmissions during which CRKP is again isolated ("CRKP readmission") potentially contribute to transm ...
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Journal articleJ Infect · March 2016
BACKGROUND: Phenol-soluble modulins (PSM) are amphipathic proteins produced by Staphylococcus aureus that promote virulence, inflammatory response, and biofilm formation. We previously showed that MRSA isolates from soft tissue infection (SSTI) produced si ...
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Journal articleJ Infect Dis · February 15, 2016
BACKGROUND: The type 3 secretion protein PcrV and Psl exopolysaccharide are promising therapeutic antibody targets against Pseudomonas aeruginosa. We examined P. aeruginosa bloodstream infection (BSI) isolates for the ability to express PcrV and Psl and ev ...
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Journal articleSci Transl Med · January 20, 2016
Acute respiratory infections caused by bacterial or viral pathogens are among the most common reasons for seeking medical care. Despite improvements in pathogen-based diagnostics, most patients receive inappropriate antibiotics. Host response biomarkers of ...
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Journal articleClin Infect Dis · January 15, 2016
BACKGROUND: Rapid molecular diagnostic (RMD) platforms may lead to better antibiotic use. Our objective was to develop analytical strategies to enhance the interpretation of RMDs for clinicians. METHODS: We compared the performance characteristics of 4 RMD ...
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Journal articleMethods Mol Biol · 2016
Pulse Field Gel Electrophoresis (PFGE) is a powerful genotyping technique used for the separation of large DNA molecules (entire genomic DNA) after digesting it with unique restriction enzymes and applying to a gel matrix under the electric field that peri ...
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Journal articleInfect Control Hosp Epidemiol · January 2016
OBJECTIVE To describe the epidemiology of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli (ESBL-EC) and Klebsiella pneumoniae (ESBL-KP) infections DESIGN Retrospective cohort SETTING Inpatient care at community hospitals PATIENTS All patien ...
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Journal articleOpen Forum Infect Dis · January 2016
Whole-genome analysis was applied to investigate atypical point-source transmission of 2 invasive group A streptococcal (GAS) infections. Isolates were serotype M4, ST39, and genetically indistinguishable. Comparison with MGAS10750 revealed nonsynonymous p ...
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Journal articleJAMA Pediatr · December 2015
IMPORTANCE: Staphylococcus aureus is a frequent cause of infection in hospitalized infants. These infections are associated with increased mortality and morbidity and longer hospital stays, but data on the burden of S aureus disease in hospitalized infants ...
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Journal articleInfect Immun · December 2015
Endovascular infections caused by Staphylococcus aureus involve interactions with fibronectin present as extracellular matrix or surface ligand on host cells. We examined the expression, structure, and binding activity of the two major S. aureus fibronecti ...
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Journal articleOpen Forum Infect Dis · December 2015
Background. The majority of Lyme disease cases in the United States are acquired on the east coast between northern Virginia and New England. In recent years the geographic extent of Lyme disease has been expanding, raising the prospect of Lyme disease be ...
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Journal articleClin Infect Dis · November 1, 2015
BACKGROUND: Lyme disease is diagnosed by 2-tiered serologic testing in patients with a compatible clinical illness, but the significance of positive test results in low-prevalence regions has not been investigated. METHODS: We reviewed the medical records ...
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Journal articlePediatr Infect Dis J · November 2015
BACKGROUND: The impact of early adequate empirical antibiotic therapy on outcomes of infants in the neonatal intensive care unit (NICU) who develop Staphylococcus aureus bloodstream infections (BSI) is unknown. METHODS: Infants with S. aureus BSI discharge ...
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Journal articleCirculation · October 13, 2015
BACKGROUND: Infective endocarditis is a potentially lethal disease that has undergone major changes in both host and pathogen. The epidemiology of infective endocarditis has become more complex with today's myriad healthcare-associated factors that predisp ...
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Journal articleKidney Int · October 2015
A systems biology approach was used to comprehensively examine the impact of renal disease and hemodialysis (HD) on patient response during critical illness. To achieve this, we examined the metabolome, proteome, and transcriptome of 150 patients with crit ...
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Journal articleJ Infect · October 2015
BACKGROUND: Phenol-soluble modulins (PSMs) are amphipathic, pro-inflammatory proteins secreted by most Staphylococcus aureus isolates. This study tested the hypothesis that in vitro PSM production levels are associated with specific clinical phenotypes. ME ...
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Journal articlePediatr Infect Dis J · September 2015
BACKGROUND: Escherichia coli is a common cause of bloodstream infections (BSIs) in infants and is associated with high mortality and morbidity among survivors. The clinical significance of antibiotic resistance and timing of appropriate antimicrobial thera ...
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Journal articleClin Infect Dis · September 1, 2015
Clinical trials that compare strategies to optimize antibiotic use are of critical importance but are limited by competing risks that distort outcome interpretation, complexities of noninferiority trials, large sample sizes, and inadequate evaluation of be ...
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Journal articleOpen Forum Infect Dis · September 2015
Background. The contemporary Staphylococcus aureus clonal complex (CC) 30 lineage is associated with complicated infections, including endocarditis and osteomyelitis. This lineage diverged from the phage-type 80/81 S aureus clone responsible for a major b ...
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Journal articleInfect Control Hosp Epidemiol · August 2015
OBJECTIVE: To determine the rates of and risk factors for tigecycline nonsusceptibility among carbapenem-resistant Klebsiella pneumoniae (CRKPs) isolated from hospitalized patients. DESIGN: Multicenter prospective observational study. SETTING: Acute care h ...
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Journal articleClin Microbiol Rev · July 2015
Staphylococcus aureus is a major human pathogen that causes a wide range of clinical infections. It is a leading cause of bacteremia and infective endocarditis as well as osteoarticular, skin and soft tissue, pleuropulmonary, and device-related infections. ...
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Journal articleCirc Cardiovasc Imaging · July 2015
BACKGROUND: Staphylococcus aureus left-sided native valve infective endocarditis (LNVIE) has higher complication and mortality rates compared with endocarditis from other pathogens. Whether echocardiographic variables can predict prognosis in S aureus LNVI ...
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Journal articleExpert Opin Pharmacother · May 2015
INTRODUCTION: Inpatient treatment of acute bacterial skin and skin structure infections (ABSSSIs) exerts a significant economic burden on the healthcare system. Oritavancin is a concentration-dependent, rapid bactericidal agent approved for the treatment o ...
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Journal articleJ Antimicrob Chemother · April 2015
OBJECTIVES: Carbapenem-resistant Klebsiella pneumoniae (CRKP) is an important healthcare-associated pathogen. We evaluated the impact of CRKP strain type and treatment on outcomes of patients with CRKP bacteriuria. PATIENTS AND METHODS: Physician-diagnosed ...
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Journal articleAntimicrob Agents Chemother · April 2015
Candida infective endocarditis is a rare disease with a high mortality rate. Our understanding of this infection is derived from case series, case reports, and small prospective cohorts. The purpose of this study was to evaluate the clinical features and u ...
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Journal articlePediatr Infect Dis J · April 2015
BACKGROUND: Coagulase-negative Staphylococcus (CoNS) is the most common cause of bloodstream infections (BSI) in hospitalized infants. CoNS BSI is most reliably treated with vancomycin; however, concerns about side effects and promoting resistance often de ...
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Journal articleClin Infect Dis · March 1, 2015
BACKGROUND: The impact of early valve surgery (EVS) on the outcome of Staphylococcus aureus (SA) prosthetic valve infective endocarditis (PVIE) is unresolved. The objective of this study was to evaluate the association between EVS, performed within the fir ...
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Journal articleBio Protoc · February 20, 2015
This protocol describes a straightforward technique to evaluate the phagocytotic capacity of murine macrophages for Staphylococcus aureus (S. aureus). By staining S. aureus with Hexidium Iodide and staining murine bone marrow-derived macrophages (BMDMs) wi ...
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Journal articleJ Infect · February 2015
OBJECTIVES: Staphylococcus aureus initiates cardiac device-related infection (CDI) by binding of fibronectin binding protein A (FnBPA) to the device's surface. In FnBPA, specific "binding enhancing" amino acid alterations are associated with CDI. However, ...
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Journal articleCirculation · January 13, 2015
BACKGROUND: Use of surgery for the treatment of infective endocarditis (IE) as related to surgical indications and operative risk for mortality has not been well defined. METHODS AND RESULTS: The International Collaboration on Endocarditis-PLUS (ICE-PLUS) ...
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Journal articleJ Clin Microbiol · January 2015
Alpha-toxin is a major Staphylococcus aureus virulence factor. This study evaluated potential relationships between in vitro alpha-toxin expression of S. aureus bloodstream isolates, anti-alpha-toxin antibody in serum of patients with S. aureus bacteremia ...
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Journal articleAntimicrob Resist Infect Control · 2015
BACKGROUND: Staphylococcus aureus is the most common and most important pathogen following knee and hip arthroplasty procedures. Understanding the epidemiology of invasive S. aureus infections is important to quantify this serious complication. METHODS: Th ...
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Journal articlePLoS One · 2015
BACKGROUND: Nonsynonymous single nucleotide polymorphisms (SNPs) in fibronectin binding protein A (fnbA) of Staphylococcus aureus are associated with cardiac device infections. However, the role of fnbA SNPs in S. aureus arthroplasty infection is unknown. ...
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Journal articleClin Microbiol Infect · December 2014
Carbapenem-resistant Klebsiella pneumoniae (CRKP) is an increasing global threat. Here, we describe the prevalence and impact of tigecycline use in a cohort of patients with CRKP bacteriuria nested within a multicentre, prospective study. In the 21-month s ...
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Journal articleOpen Forum Infect Dis · December 2014
Two American football players on the same team were diagnosed with methicillin-resistant Staphylococcus aureus (MRSA) skin and soft tissue infections on the same day. Our investigation, including whole genome sequencing, confirmed that players did not tran ...
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Journal articleClin Infect Dis · November 15, 2014
Systematic studies have shown that gram-positive organisms are the leading cause of invasive bacterial disease in patients with cancer. A broad range of gram-positive bacteria cause serious infections in the cancer patient with the greatest burden of disea ...
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Journal articleJAMA · October 1, 2014
IMPORTANCE: Several management strategies may improve outcomes in patients with Staphylococcus aureus bacteremia. OBJECTIVES: To review evidence of management strategies for S. aureus bacteremia to determine whether transesophageal echocardiography is nece ...
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Journal articleClin Infect Dis · September 15, 2014
BACKGROUND: The incidence of community-onset (CO) methicillin-resistant Staphylococcus aureus (MRSA) bacteremia rose from the late 1990s through the 2000s. However, hospital-onset (HO) MRSA rates have recently declined in the United States and Europe. METH ...
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Journal articleOpen Forum Infect Dis · September 2014
BACKGROUND: An unmet need to prevent Staphylococcus aureus (SA) infections after cardiothoracic surgery persists despite current practices. Cost-effective implementation of preventive strategies requires contemporary knowledge about modifiable risk factors ...
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Journal articleAm J Respir Crit Care Med · August 15, 2014
RATIONALE: Sepsis is a leading cause of morbidity and mortality. Currently, early diagnosis and the progression of the disease are difficult to make. The integration of metabolomic and transcriptomic data in a primate model of sepsis may provide a novel mo ...
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Journal articleInfect Control Hosp Epidemiol · August 2014
OBJECTIVE: Describe the epidemiology of carbapenem-resistant Enterobacteriaceae (CRE) and examine the effect of lower carbapenem breakpoints on CRE detection. DESIGN: Retrospective cohort. SETTING: Inpatient care at community hospitals. PATIENTS: All patie ...
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Journal articleAntimicrob Agents Chemother · July 2014
Carbapenem resistance in Gram-negative bacteria is on the rise in the United States. A regional network was established to study microbiological and genetic determinants of clinical outcomes in hospitalized patients with carbapenem-resistant (CR) Klebsiell ...
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Journal articleClin Infect Dis · June 2014
Funded by the National Institute of Allergy and Infectious Diseases, the Antibacterial Resistance Leadership Group (ARLG) is tasked with developing a clinical research agenda and conducting clinical studies to address the growing public health threat of an ...
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Journal articlePLoS Pathog · June 2014
Using A/J mice, which are susceptible to Staphylococcus aureus, we sought to identify genetic determinants of susceptibility to S. aureus, and evaluate their function with regard to S. aureus infection. One QTL region on chromosome 11 containing 422 genes ...
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Journal articleBMC Infect Dis · May 23, 2014
BACKGROUND: Staphylococcus aureus bacteremia is a common infection associated with significant morbidity and mortality. Telavancin is a bactericidal lipoglycopeptide active against Gram-positive pathogens, including methicillin-resistant S. aureus (MRSA). ...
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Journal articleClin Microbiol Infect · May 2014
In this review, we examine the current status of Staphylococcus aureus vaccine development and the prospects for future vaccines. Examination of the clinical trials to date show that murine models have not predicted success in humans for active or passive ...
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Journal articleJ Infect · March 2014
OBJECTIVES: Staphylococcus aureus bacteraemia is a common, often fatal infection. Our aim was to describe how its clinical presentation varies between populations and to identify common determinants of outcome. METHODS: We conducted a pooled analysis on 33 ...
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Journal articleBMC Infect Dis · February 13, 2014
BACKGROUND: Humans vary in their susceptibility to acquiring Staphylococcus aureus infection, and research suggests that there is a genetic basis for this variability. Several recent genome-wide association studies (GWAS) have identified variants that may ...
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Journal articlePLoS One · 2014
OBJECTIVE: To identify metabolomic biomarkers predictive of Intensive Care Unit (ICU) mortality in adults. RATIONALE: Comprehensive metabolomic profiling of plasma at ICU admission to identify biomarkers associated with mortality has recently become feasib ...
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Journal articlePLoS One · 2014
BACKGROUND: While the majority of healthcare in the US is provided in community hospitals, the epidemiology and treatment of bloodstream infections in this setting is unknown. METHODS AND FINDINGS: We undertook this multicenter, retrospective cohort study ...
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Journal articleBMC Infectious Diseases · 2014
Background: Staphylococcus aureus bacteremia is a common infection associated with significant morbidity and mortality. Telavancin is a bactericidal lipoglycopeptide active against Gram-positive pathogens, including methicillin-resistant S. aureus (MRSA). ...
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Journal articleGenome Med · 2014
BACKGROUND: Sepsis, a leading cause of morbidity and mortality, is not a homogeneous disease but rather a syndrome encompassing many heterogeneous pathophysiologies. Patient factors including genetics predispose to poor outcomes, though current clinical ch ...
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Journal articleAntimicrob Agents Chemother · December 2013
The use of daptomycin in Gram-positive left-sided infective endocarditis (IE) has significantly increased. The purpose of this study was to assess the influence of high-dose daptomycin on the outcome of left-sided IE due to Gram-positive pathogens. This wa ...
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Journal articleEur J Clin Microbiol Infect Dis · October 2013
Staphylococcus aureus is a human commensal bacterium found in the nasal cavity and other body sites. Identifying risk factors for S. aureus nasal carriage is of interest, as nasal carriage is a risk factor for subsequent invasive infection. We recently inv ...
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Journal articleSci Transl Med · September 18, 2013
Improved ways to diagnose acute respiratory viral infections could decrease inappropriate antibacterial use and serve as a vital triage mechanism in the event of a potential viral pandemic. Measurement of the host response to infection is an alternative to ...
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Journal articleJAMA Intern Med · September 9, 2013
IMPORTANCE: There are limited prospective, controlled data evaluating survival in patients receiving early surgery vs medical therapy for prosthetic valve endocarditis (PVE). OBJECTIVE: To determine the in-hospital and 1-year mortality in patients with PVE ...
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Journal articleJ Infect Dis · August 1, 2013
Staphylococcus aureus clonal complex 75 (herein referred to as S. argenteus) lacks the carotenoid pigment operon, crtOPQMN, responsible for production of the putative virulence factor, staphyloxanthin. Although a common cause of community-onset skin infect ...
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Journal articleSci Transl Med · July 24, 2013
Sepsis is a common cause of death, but outcomes in individual patients are difficult to predict. Elucidating the molecular processes that differ between sepsis patients who survive and those who die may permit more appropriate treatments to be deployed. We ...
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Journal articleClin Infect Dis · June 2013
For more than 4 decades, vancomycin has been the antibiotic of choice for methicillin-resistant Staphylococcus aureus (MRSA) infections. Recently, infections due to isolates with high but susceptible vancomycin minimum inhibitory concentrations have been a ...
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Journal articleJAMA · April 3, 2013
IMPORTANCE: Infections due to Staphylococcus aureus are serious complications of cardiothoracic surgery. A novel vaccine candidate (V710) containing the highly conserved S. aureus iron surface determinant B is immunogenic and generally well tolerated in vo ...
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Journal articleEuropean Journal of Clinical Microbiology and Infectious Diseases · 2013
Staphylococcus aureus is a human commensal bacterium found in the nasal cavity and other body sites. Identifying risk factors for S. aureus nasal carriage is of interest, as nasal carriage is a risk factor for subsequent invasive infection. We recently inv ...
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Journal articlePLoS One · 2013
Staphylococcus aureus causes a spectrum of human infection. Diagnostic delays and uncertainty lead to treatment delays and inappropriate antibiotic use. A growing literature suggests the host's inflammatory response to the pathogen represents a potential t ...
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Journal articleClin Infect Dis · January 2013
BACKGROUND: The timing of cardiac surgery after stroke in infective endocarditis (IE) remains controversial. We examined the relationship between the timing of surgery after stroke and the incidence of in-hospital and 1-year mortalities. METHODS: Data were ...
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Journal articlePLoS One · 2013
Linezolid (L), a potent antibiotic for Methicillin Resistant Staphylococcus aureus (MRSA), inhibits bacterial protein synthesis. By contrast, vancomycin (V) is a cell wall active agent. Here, we used a murine sepsis model to test the hypothesis that L trea ...
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Journal articlePLoS One · 2013
The HACEK organisms (Haemophilus species, Aggregatibacter species, Cardiobacterium hominis, Eikenella corrodens, and Kingella species) are rare causes of infective endocarditis (IE). The objective of this study is to describe the clinical characteristics a ...
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Journal articlePLoS One · 2013
BACKGROUND: Gram-negative bacterial bloodstream infection (BSI) is a serious condition with estimated 30% mortality. Clinical outcomes for patients with severe infections improve when antibiotics are appropriately chosen and given early. The objective of t ...
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Journal articleAm J Infect Control · December 2012
BACKGROUND: Major postoperative infections (MPIs) are poorly understood complications of cardiac surgery. We examined the epidemiology, microbiology, and outcome of MPIs occurring after cardiac surgery. METHODS: The study cohort was drawn from the Society ...
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Journal articleJ Infect Dis · October 2012
BACKGROUND: Nasal carriage is a major risk factor for Staphylococcus aureus infection. Approximately, one-quarter of adults carry S. aureus. However, the role of host genetics on S. aureus nasal carriage is unknown. METHODS: Nasal swabs were obtained from ...
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Journal articleJ Med Microbiol · August 2012
Staphylococcus aureus is a leading cause of catheter infections, and biofilm formation plays a key role in the pathogenesis. Metal ion chelators inhibit bacterial biofilm formation and viability, making them attractive candidates as components in catheter ...
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Journal articleJ Emerg Med · July 2012
BACKGROUND: Circulating biomarkers can facilitate sepsis diagnosis, enabling early management and improved outcomes. Procalcitonin (PCT) has been suggested to have superior diagnostic utility compared to other biomarkers. STUDY OBJECTIVES: To define the di ...
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Journal articleG3 (Bethesda) · June 2012
Exposure to Staphylococcus aureus has a variety of outcomes, from asymptomatic colonization to fatal infection. Strong evidence suggests that host genetics play an important role in susceptibility, but the specific host genetic factors involved are not kno ...
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Journal articleJAMA · April 25, 2012
CONTEXT: Infection of implantable cardiac devices is an emerging disease with significant morbidity, mortality, and health care costs. OBJECTIVES: To describe the clinical characteristics and outcome of cardiac device infective endocarditis (CDIE) with att ...
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Journal articleSemin Immunopathol · March 2012
Staphylococcus aureus is a human commensal that can also cause a broad spectrum of clinical disease. Factors associated with clinical disease are myriad and dynamic and include pathogen virulence, antimicrobial resistance, and host susceptibility. Addition ...
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Journal articleJ Clin Microbiol · March 2012
The impact of Panton-Valentine leukocidin (PVL) on the outcome in Staphylococcus aureus pneumonia is controversial. We genotyped S. aureus isolates from patients with hospital-acquired pneumonia (HAP) enrolled in two registrational multinational clinical t ...
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Journal articleJ Biol Chem · February 24, 2012
Staphylococcus aureus is part of the indigenous microbiota of humans. Sometimes, S. aureus bacteria enter the bloodstream, where they form infections on implanted cardiovascular devices. A critical, first step in such infections is a bond that forms betwee ...
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Journal articlePLoS One · 2012
The impact of Panton-Valentine leukocidin (PVL) on the severity of complicated skin and skin structure infections (cSSSI) caused by Staphylococcus aureus is controversial. We evaluated potential associations between clinical outcome and PVL presence in bot ...
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Journal articlePLoS One · 2012
INTRODUCTION: Human beta-defensins are key components of human innate immunity to a variety of pathogens, including Staphylococcus aureus. The aim of the present study was to investigate a potential association between gene variations in DEFB1 and DEFB103/ ...
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Journal articleClin Transl Sci · December 2011
The mentoring relationship between a scholar and their primary mentor is a core feature of research training. Anecdotal evidence suggests this relationship is adversely affected when scholar and mentor expectations are not aligned. We examined three questi ...
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Journal articleProc Natl Acad Sci U S A · November 8, 2011
Medical implants, like cardiovascular devices, improve the quality of life for countless individuals but may become infected with bacteria like Staphylococcus aureus. Such infections take the form of a biofilm, a structured community of bacterial cells adh ...
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Journal articleJ Infect Dis · September 1, 2011
BACKGROUND: Using multinational collections of methicillin-susceptible Staphylococcus aureus (MSSA) isolates from infective endocarditis (IE) and soft tissue infections (STIs), we sought to (1) validate the finding that S. aureus in clonal complex (CC) 30 ...
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Journal articleInfect Control Hosp Epidemiol · July 2011
BACKGROUND: Coagulase-negative staphylococci (CoNS) are the most commonly isolated pathogens in the neonatal intensive care unit (NICU). CoNS infections are associated with increased morbidity, including neurodevelopmental impairment. OBJECTIVE: To describ ...
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Journal articleClin Infect Dis · July 1, 2011
BACKGROUND: Infective endocarditis (IE) is a severe complication in patients with nosocomial Staphylococcus aureus bacteremia (SAB). We sought to develop and validate criteria to identify patients at low risk for the development of IE in whom transesophage ...
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Journal articleClin Pediatr (Phila) · June 2011
BACKGROUND: Staphylococcus aureus is a common cause of skin abscesses. OBJECTIVE: To evaluate primary care pediatricians' management of skin abscesses. METHODS: A national mail survey of a random sample of 385 general pediatricians conducted from April to ...
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Journal articleEur J Echocardiogr · June 2011
AIMS: Staphylococcus aureus infective endocarditis (IE) is a critical medical condition associated with a high morbidity and mortality. In the present study, we prospectively evaluated the importance of screening with echocardiography in an unselected S. a ...
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Journal articlePLoS One · April 26, 2011
BACKGROUND: The clinical spectrum of Staphylococcus aureus infection ranges from asymptomatic nasal carriage to osteomyelitis, infective endocarditis (IE) and death. In this study, we evaluate potential association between the presence of specific genes in ...
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Journal articleJ Clin Microbiol · April 2011
Transmission of methicillin-resistant Staphylococcus aureus (MRSA) between humans and animals is increasingly recognized. We newly document that the transmission of MRSA between human and hamster is possible. ...
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Journal articleAntimicrob Agents Chemother · February 2011
Persistent methicillin-resistant Staphylococcus aureus (MRSA) bacteremia (PB) (positive blood cultures after ≥7 days of therapy) represents a clinically challenging subset of invasive MRSA infections. In this investigation, we examined the potential correl ...
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Journal articlePLoS One · 2011
Methicillin-resistant Staphylococcus aureus (MRSA) is a significant pathogen in both human and veterinary medicine. The importance of companion animals as reservoirs of human infections is currently unknown. The companion animals of 49 MRSA-infected outpat ...
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Journal articleFuture Microbiol · January 2011
Staphylococcus aureus bacteremia (SAB) is an urgent medical problem due to its growing frequency and its poor associated outcome. As healthcare delivery increasingly involves invasive procedures and implantable devices, the number of patients at risk for S ...
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Journal articleBiophys J · November 3, 2010
It is well established that bacteria are able to respond to temporal gradients (e.g., by chemotaxis). However, it is widely held that prokaryotes are too small to sense spatial gradients. This contradicts the common observation that the vast majority of ba ...
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Journal articleEnferm Infecc Microbiol Clin · October 2010
INTRODUCTION: In a recent randomized trial of Staphylococcus aureus bacteremia and native valve endocarditis, daptomycin was found not inferior to standard therapy. We summarized findings in the subgroup of patients with endocarditis according to the Duke ...
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Journal articlePLoS Pathog · September 2, 2010
Although it has recently been shown that A/J mice are highly susceptible to Staphylococcus aureus sepsis as compared to C57BL/6J, the specific genes responsible for this differential phenotype are unknown. Using chromosome substitution strains (CSS), we fo ...
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Journal articleLangmuir · July 6, 2010
Bacterial cell-wall-associated fibronectin binding proteins A and B (FnBPA and FnBPB) form bonds with host fibronectin. This binding reaction is often the initial step in prosthetic device infections. Atomic force microscopy was used to evaluate binding in ...
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Journal articleInfect Control Hosp Epidemiol · July 2010
OBJECTIVE: To determine the epidemiological characteristics of postoperative invasive Staphylococcus aureus infection following 4 types of major surgical procedures.design. Retrospective cohort study. SETTING: Eleven hospitals (9 community hospitals and 2 ...
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Journal articleClin Microbiol Infect · June 2010
Methicillin-resistant Staphylococcus aureus (MRSA) bacteraemia is associated with increased mortality. Delay in appropriate antimicrobial therapy (DAAT) is an important risk factor for death, although confounding between carriage of MRSA and DAAT has not b ...
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Journal articleAntimicrob Agents Chemother · May 2010
Using 98 clinical methicillin-susceptible Staphylococcus aureus isolates of known beta-lactamase (Bla) type, we found a pronounced inoculum effect for cephalexin (mostly Bla type A and C strains), a mild inoculum effect for cephalothin (especially types B ...
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Journal articleAcad Emerg Med · April 2010
BACKGROUND: Aggressive diagnosis and treatment of patients presenting to the emergency department (ED) with septic shock has been shown to reduce mortality. To enhance the ability to intervene in patients with lesser illness severity, a better understandin ...
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Journal articleJ Microbiol Methods · April 2010
We describe the development and application of a Pooled Suppression Subtractive Hybridization (PSSH) method to describe differences between the genomic content of a pool of clinical Staphylococcus aureus isolates and a sequenced reference strain. In compar ...
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Journal articleCirculation · March 2, 2010
BACKGROUND: The impact of early surgery on mortality in patients with native valve endocarditis (NVE) is unresolved. This study sought to evaluate valve surgery compared with medical therapy for NVE and to identify characteristics of patients who are most ...
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Journal articleJ Clin Microbiol · January 2010
Sepsis is caused by a heterogeneous group of infectious etiologies. Early diagnosis and the provision of appropriate antimicrobial therapy correlate with positive clinical outcomes. Current microbiological techniques are limited in their diagnostic capacit ...
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Journal articleEur J Clin Microbiol Infect Dis · December 2009
The complications from S. aureus bacteremia (SAB) and infective endocarditis (SAIE) are higher in patients with diabetes. We summarize the characteristics and outcome of diabetic patients enrolled in a multicenter trial of daptomycin vs. standard therapy f ...
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Journal articleJ Clin Microbiol · December 2009
The role of Panton-Valentine leukocidin (PVL) in determining the severity and outcome of complicated skin and skin structure infections (cSSSI) caused by methicillin (meticillin)-resistant Staphylococcus aureus (MRSA) is controversial. We evaluated potenti ...
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Journal article · December 1, 2009
Despite major advances in the medical arena, staphylococci remain important agents of infectious diseases in the human host. Although initially disregarded as contaminants in cultures, coagulase-negative staphylococci have recently gained great clinical si ...
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Journal articleStaphylococci in Human Disease Second Edition · November 18, 2009
Staphylococci remain the most important cause of hospital-acquired infections in the U.S. and MRSA has become the most common cause of skin and soft tissue infection in many parts of the world. There is now a much greater understanding of the physiology an ...
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Journal articleJ Infect Dis · November 1, 2009
BACKGROUND: The significance of heterogeneous vancomycin-intermediate Staphylococcus aureus (hVISA) is unknown. Using a multinational collection of isolates from methicillin-resistant S. aureus (MRSA) infective endocarditis (IE), we characterized patients ...
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Journal articleHealth Policy · October 2009
Malaria and other vector-borne diseases represent a significant and growing burden in many tropical countries. Successfully addressing these threats will require policies that expand access to and use of existing control methods, such as insecticide-treate ...
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Journal articleAntimicrob Agents Chemother · August 2009
Methicillin (meticillin)-susceptible Staphylococcus aureus (MSSA) strains producing large amounts of type A beta-lactamase (Bla) have been associated with cefazolin failures, but the frequency and impact of these strains have not been well studied. Here we ...
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Journal articleAnn Intern Med · May 5, 2009
BACKGROUND: The clinical profile and outcome of nosocomial and non-nosocomial health care-associated native valve endocarditis are not well defined. OBJECTIVE: To compare the characteristics and outcomes of community-associated and nosocomial and non-nosoc ...
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Journal articleJ Infect · May 2009
OBJECTIVES: To assess the influence of acetyl-salicylic acid (ASA) on clinical outcomes in Staphylococcus aureus infective endocarditis (SA-IE). METHODS: The International Collaboration on Endocarditis - Prospective Cohort Study database was used in this o ...
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Journal articleHeart · April 2009
OBJECTIVE: To describe the contemporary features of coagulase-negative staphylococcal (CoNS) prosthetic valve endocarditis (PVE). DESIGN: Observational study of prospectively collected data from a multinational cohort of patients with infective endocarditi ...
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Journal articleHeart · April 2009
BACKGROUND: Previous studies have suggested that living in a multi-generational household (a type of family structure prevalent in Japan) confers mixed health benefits and stresses, especially for women who report such living arrangements. OBJECTIVE: To ex ...
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Journal articleInfect Immun · April 2009
NOD2 (the nucleotide-binding oligomerization domain containing protein 2) is known to be involved in host recognition of bacteria, although its role in the host response to Staphylococcus aureus infection is unknown. NOD2-deficient (Nod2(-/-)) mice and wil ...
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Journal articleClin Infect Dis · March 15, 2009
BACKGROUND: The safety of adding initial low-dose gentamicin to antistaphylococcal penicillins or vancomycin for treatment of suspected Staphylococcus aureus native valve endocarditis is unknown. This study evaluated the association between this practice a ...
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Journal articleArch Intern Med · March 9, 2009
BACKGROUND: We sought to provide a contemporary picture of the presentation, etiology, and outcome of infective endocarditis (IE) in a large patient cohort from multiple locations worldwide. METHODS: Prospective cohort study of 2781 adults with definite IE ...
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Journal articleAm J Med · March 2009
BACKGROUND: Although Staphylococcus aureus bacteremia is a common, serious infection, accurately identifying febrile patients with this diagnosis at the time of initial evaluation is difficult. The purpose of this investigation was to define clinical chara ...
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Journal articleInfect Control Hosp Epidemiol · March 2009
OBJECTIVE: Staphylococcus aureus infections after cardiac surgery result in significant morbidity and mortality. Identifying patients at elevated risk for these infections preoperatively could facilitate efforts to reduce infection rates. The objectives of ...
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Journal articleClin J Am Soc Nephrol · February 2009
BACKGROUND AND OBJECTIVES: Staphylococcus aureus is a leading cause of infection in patients with ESRD. Clinical and economic outcomes associated with S. aureus bacteremia and other S. aureus infections in patients with ESRD were examined. DESIGN, SETTING, ...
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Journal articleJ Infect Dis · January 15, 2009
BACKGROUND: Persistent MRSA bacteremia (PB) represents an important subset of Staphylococcus aureus infections and correlates with poor clinical outcomes. METHODS: We profiled relevant in vitro phenotypic and genotypic characteristics of MRSA isolates from ...
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Journal articlePLoS One · 2009
BACKGROUND: Most information on invasive Staphylococcus aureus infections comes from temperate countries. There are considerable knowledge gaps in epidemiology, treatment, drug resistance and outcome of invasive S. aureus infection in the tropics. METHODS: ...
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Journal articlePLoS ONE · 2009
Background: Most information on invasive Staphylococcus aureus infections comes from temperate countries. There are considerable knowledge gaps in epidemiology, treatment, drug resistance and outcome of invasive S. aureus infection in the tropics. Methods: ...
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Journal articleMaterials Research Society Symposium Proceedings · December 1, 2008
Staphylococcus aureus is one of the most frequently isolated bacteria from infected medical implants. S. aureus has the capacity to adhere to the surface of an implant where it forms a biofilm. We used atomic force microscopy to probe binding forces betwee ...
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Journal articleMaterials Research Society Symposium Proceedings · December 1, 2008
The sheer number of bacteria living on solid surfaces makes a compelling argument for the existence of surface sensing mechanisms. However, surface sensing abilities have not been widely studied in bacteria, because such abilities are not macroscopically o ...
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Journal articleBraz J Infect Dis · December 2008
We report here the first case of endocarditis due to CA-MRSA not associated with healthcare contact in Brazil in Brazil. A previously healthy patient presented with history of endocarditis following a traumatic wound infection. Patient had multiple positiv ...
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Journal articleInfect Immun · November 2008
Staphylococcus epidermidis is one of the most common causes of infections of prosthetic heart valves (prosthetic valve endocarditis [PVE]) and an increasingly common cause of infections of native heart valves (native valve endocarditis [NVE]). While S. epi ...
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Journal articleArch Intern Med · October 27, 2008
BACKGROUND: Elderly patients are emerging as a population at high risk for infective endocarditis (IE). However, adequately sized prospective studies on the features of IE in elderly patients are lacking. METHODS: In this multinational, prospective, observ ...
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Journal articleClin Infect Dis · October 1, 2008
During the Health Care-Associated Pneumonia Summit conducted in June 2007, it was found that there is a need for educational efforts in several areas of health care-associated infections (HAI) that extend beyond pneumonia. This supplement to Clinical Infec ...
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Journal articleJ Clin Microbiol · September 2008
We investigated associations between the genotypic and phenotypic features of Staphylococcus aureus bloodstream isolates and the clinical characteristics of bacteremic patients enrolled in a phase III trial of S. aureus bacteremia and endocarditis. Isolate ...
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Journal articleAntimicrob Agents Chemother · September 2008
In a recent landmark trial of bacteremia caused by methicillin-resistant Staphylococcus aureus (MRSA) isolates, vancomycin MICs were >or=1 microg/ml for only 16% of the isolates, and accessory gene regulator (agr) function as measured by delta-hemolysin ac ...
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Journal articleEur J Clin Microbiol Infect Dis · July 2008
Candida infective endocarditis (IE) is uncommon but often fatal. Most epidemiologic data are derived from small case series or case reports. This study was conducted to explore the epidemiology, treatment patterns, and outcomes of patients with Candida IE. ...
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Journal articleClin Infect Dis · June 1, 2008
BACKGROUND: Telavancin is an investigational, rapidly bactericidal lipoglycopeptide with a multifunctional mechanism of action. METHODS: We conducted 2 parallel, randomized, double-blind, active-control, phase 3 studies with a prespecified pooled analysis ...
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Journal articleClin Infect Dis · June 1, 2008
Staphylococcus aureus bacteremia and endocarditis are serious infections that demand prompt clinical attention to ensure good outcomes. Of foremost importance is identifying and managing the source of infection and any associated complications. Evaluation ...
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Journal articleACS Symposium Series · May 30, 2008
Staphylococcus aureus is one of the most frequently isolated bacteria from infected medical implants. S. aureus has the capacity to adhere to the surface of an implant where it forms a biofilm. We used atomic force microscopy to probe binding forces betwee ...
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Journal articleJ Clin Microbiol · May 2008
Coagulase-negative staphylococci (CNS) are important causes of infective endocarditis (IE), but their microbiological profiles are poorly described. We performed DNA target sequencing and susceptibility testing for 91 patients with definite CNS IE who were ...
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Journal articleHeart · May 2008
BACKGROUND: Despite widespread acceptance of echocardiography for diagnosis of infective endocarditis, few investigators have evaluated its utility as a risk-stratification tool to aid therapeutic decision-making. METHODS: A decision tree and Markov analys ...
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Journal articleJ Perinatol · March 2008
We report two infants treated with daptomycin for methicillin-resistant Staphylococcus aureus infection and describe peak and trough blood concentrations measured during therapy. The peak concentrations were 41.7 and 36.7 mcg ml(-1), and the 12-hour trough ...
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Journal articleCrit Care Med · February 2008
OBJECTIVE: Infection and thrombosis are important complications of intravascular catheters. The purpose of this study was to determine the incidence of thrombosis in patients with central venous catheter-associated Staphylococcus aureus bacteremia and the ...
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Journal articleEur J Clin Microbiol Infect Dis · February 2008
Leptotrichia species typically colonize the oral cavity and genitourinary tract. We report the first two cases of endocarditis secondary to L. goodfellowii sp. nov. Both cases were identified using 16S rRNA gene sequencing. Review of the English literature ...
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Journal articleJ Clin Microbiol · February 2008
The impact of bacterial genetic characteristics on the outcome of patients with Staphylococcus aureus infections is uncertain. This investigation evaluated potential associations between bacterial genotype and clinical outcome using isolates collected as p ...
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Journal articleClin Infect Dis · January 15, 2008
BACKGROUND: Coagulase-negative staphylococci (CoNS) are an infrequent cause of native valve endocarditis (NVE), and our understanding of NVE caused by CoNS is incomplete. METHOD: The International Collaboration on Endocarditis-Prospective Cohort Study incl ...
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Journal articleJ Antimicrob Chemother · January 2008
OBJECTIVES: To evaluate the clinical characteristics, treatment and outcomes of patients with osteoarticular infections (OAIs) associated with Staphylococcus aureus bacteraemia (SAB). METHODS: The clinical characteristics and outcomes for patients with OAI ...
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Journal articleScand J Infect Dis · 2008
We evaluated costs and outcomes of patients with S. aureus bacteremia and orthopedic device infections (ODI). Patients with ODI had higher relapse of S. aureus infection, compared to bacteremic patients without ODI. Costs and outcomes were similar among OD ...
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Journal articleAnn Intern Med · December 18, 2007
BACKGROUND: Infective endocarditis caused by non-HACEK (species other than Haemophilus species, Actinobacillus actinomycetemcomitans, Cardiobacterium hominis, Eikenella corrodens, or Kingella species) gram-negative bacilli is rare, is poorly characterized, ...
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Journal articleAntimicrob Agents Chemother · December 2007
New treatment modalities are needed for the treatment of infections due to multidrug-resistant Staphylococcus aureus. S. aureus capsular polysaccharide immune globulin (Altastaph) is a polyclonal immune globulin preparation that is being developed as adjun ...
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Journal articlePediatr Infect Dis J · December 2007
We compared outcomes in infants with methicillin-resistant and methicillin-sensitive Staphylococcus aureus bacteremia. Infants with methicillin-resistant S. aureus infection had a longer median duration of bacteremia (4.5 versus 1 day, P = 0.01), but no di ...
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Journal articleAm Heart J · December 2007
BACKGROUND: Embolic events to the central nervous system are a major cause of morbidity and mortality in patients with infective endocarditis (IE). The appropriate role of valvular surgery in reducing such embolic events is unclear. The purpose of this stu ...
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Journal articleSemin Respir Crit Care Med · December 2007
Methicillin-resistant Staphylococcus aureus bacteremia in patients in intensive care units is associated with significant morbidity and mortality. Prompt clinical attention is essential to ensure good outcomes, including identification and management of th ...
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Journal articleJ Infect Dis · November 1, 2007
BACKGROUND: Endogenous antimicrobial peptides participate in the innate defense of skin against a variety of pathogens. The systemic expression of these peptides in normal-appearing skin of patients with infective cellulitis is unknown. METHODS: Study pati ...
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Journal articleJ Infect Dis · September 1, 2007
BACKGROUND: The impact of bacterial clonality on infections caused by Staphylococcus aureus is unclear. METHODS: Three hundred seventy-nine S. aureus isolates (125 methicillin-resistant S. aureus [MRSA] and 254 methicillin-susceptible S. aureus [MSSA]) wer ...
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Journal articleCurr Infect Dis Rep · July 2007
Infective endocarditis (IE) remains a serious and deadly disease. The incidence, which varies by gender and on the presence of predisposing factors, has not decreased, due in part to the aging population with more healthcare exposures and predisposing risk ...
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Journal articleJAMA · March 28, 2007
CONTEXT: Prosthetic valve endocarditis (PVE) is associated with significant mortality and morbidity. The contemporary clinical profile and outcome of PVE are not well defined. OBJECTIVES: To describe the prevalence, clinical characteristics, and outcome of ...
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Journal articleLangmuir · February 27, 2007
Atomic force microscopy was used to "fish" for binding reactions between a fibronectin-coated probe (i.e., substrate simulating an implant device) and each of 15 different isolates of Staphylococcus aureus obtained from either patients with an infected car ...
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Journal articleClin Infect Dis · February 1, 2007
BACKGROUND: An accurate assessment of the predictors of long-term mortality in patients with infective endocarditis is not possible using retrospective data because of inherent treatment biases and predictable imbalances in the distribution of prognostic f ...
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Journal articleClin Infect Dis · January 15, 2007
BACKGROUND: Because of its ease of dosing, vancomycin is commonly used to treat methicillin-susceptible Staphylococcus aureus (MSSA) bacteremia in patients undergoing long-term hemodialysis. Clinical outcomes resulting from such a therapeutic strategy have ...
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Journal articleScand J Infect Dis · 2007
Daptomycin is a first-in-class antibiotic with efficacy against Gram-positive bacteria. We document the second report of daptomycin resistance in a clinical isolate of Enterococcus faecalis. ...
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Journal articleAm J Cardiol · November 1, 2006
The periannular extension of infection in prosthetic valve endocarditis (PVE) is a serious complication of infective endocarditis associated with high mortality. Periannular lesions in PVE occasionally rupture into adjacent cardiac chambers, leading to aor ...
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Journal articleAm J Cardiol · November 1, 2006
The extension of infection in native valve infective endocarditis (IE) from valvular structures to the periannular tissue is incompletely understood. It is unknown, for example, whether the prognosis of patients with aortocavitary fistulae is worse than th ...
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Journal articleN Engl J Med · August 17, 2006
BACKGROUND: Alternative therapies for Staphylococcus aureus bacteremia and endocarditis are needed. METHODS: We randomly assigned 124 patients with S. aureus bacteremia with or without endocarditis to receive 6 mg of daptomycin intravenously per kilogram o ...
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Journal articleAntimicrob Agents Chemother · August 2006
Tefibazumab (Aurexis), a humanized monoclonal antibody that binds to the surface-expressed adhesion protein clumping factor A, is under development as adjunctive therapy for serious Staphylococcus aureus infections. Sixty patients with documented S. aureus ...
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Journal articleEur J Clin Microbiol Infect Dis · June 2006
Infective endocarditis due to coagulase-negative staphylococci is increasingly recognized as a difficult-to-treat disease associated with poor outcome. The aim of this report is to describe the characteristics and outcome of patients with prosthetic valve ...
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Journal articleJ Perinatol · May 2006
OBJECTIVES: Very low birth weight (VLBW) infants are vulnerable to nosocomial infections and subsequent morbidity; including infections caused by Staphylococcus aureus: 85% of nosocomial S. aureus infections are caused by capsular polysaccharide (CPS) type ...
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Journal articleClin J Am Soc Nephrol · May 2006
The association between hemodialysis vascular access type, costs, and outcome of Staphylococcus aureus bacteremia (SAB) among patients with ESRD remains incompletely characterized. This study was undertaken to compare resource utilization, costs, and clini ...
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Journal articlePediatrics · April 2006
BACKGROUND: Meningitis is a substantial cause of morbidity and mortality in neonates. Clinicians frequently use the presence of positive blood cultures to determine whether neonates should undergo lumbar puncture. Abnormal cerebrospinal fluid (CSF) paramet ...
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Journal articleCurr Probl Cardiol · April 2006
With infective endocarditis afflicting 15,000 patients each year and with a mortality rate that still hovers at almost 40%, the disease remains a very serious health problem. Surprisingly, the incidence has not declined over the last 30 years, and now with ...
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Journal articleAntimicrob Agents Chemother · March 2006
Telavancin is a bactericidal lipoglycopeptide with a multifunctional mechanism of action. We conducted a randomized, double blind, active-control phase II trial. Patients > or = 18 years of age with complicated skin and skin structure infections caused by ...
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Journal articleEnferm Infecc Microbiol Clin · March 2006
Staphylococcus aureus is a versatile organism with several virulent characteristics and resistance mechanisms at its disposal. It is also a significant cause of a wide range of infectious diseases in humans. S. aureus often causes life-threatening deep sea ...
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Journal articleAm J Med · December 2005
PURPOSE: Although Staphylococcus aureus is a leading cause of nosocomial infection, little is known about the impact of S. aureus bacteremia on patients with prosthetic devices. This investigation sought to define the clinical outcome, health care resource ...
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Journal articleAm Heart J · November 2005
BACKGROUND: Early surgery has been shown to be beneficial for patients with infective endocarditis (IE), yet surgery is not used in most patients. Evidence of the uncertainty around the use of surgery can be found in the wide variations in the use of cardi ...
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Journal articleAm Heart J · November 2005
BACKGROUND: Although surgical intervention is often used in the treatment of prosthetic valve infective endocarditis (PVIE), an understanding of its effect on survival has been limited by the biases of observational studies and lack of controlled trials. M ...
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Journal articleAm J Cardiol · October 1, 2005
The aims of this study were to determine the clinical characteristics and outcome of patients who had definite infective endocarditis (IE) complicated by aortic ring abscess formation that was detected with transesophageal echocardiography (TEE) and to det ...
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Journal articleJ Infect · October 2005
OBJECTIVES: The optimal management of Candida infective endocarditis (IE) is unknown. METHODS: We reviewed all 879 cases of Candida IE reported from 1966-2002 in the peer-reviewed literature to better understand the role of medical and surgical therapies. ...
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Journal articleEur J Clin Microbiol Infect Dis · October 2005
Enterococcal prosthetic valve infective endocarditis (PVE) is an incompletely understood disease. In the present study, patients with enterococcal PVE were compared to patients with enterococcal native valve endocarditis (NVE) and other types of PVE to det ...
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Journal articleBone · October 2005
Incidences of osteomyelitis caused by Staphylococcus aureus have increased dramatically in recent years, in part, due to the appearance of community-acquired antibiotic-resistant strains. Therefore, understanding the pathogenesis of this organism has becom ...
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Journal articleCirculation · August 30, 2005
BACKGROUND: Major infections are infrequent but important complications of cardiac surgery. Predicting their occurrence is essential for future prevention. The objective of the current investigation was to create and validate a bedside scoring system to es ...
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Journal articleClin Infect Dis · August 15, 2005
BACKGROUND: Staphylococcus aureus native valve infective endocarditis (SA-NVIE) is not completely understood. The objective of this investigation was to describe the characteristics of a large, international cohort of patients with SA-NVIE. METHODS: The In ...
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Journal articleClin Infect Dis · August 1, 2005
Repeat infective endocarditis due to the same species can represent relapse of the initial infection or a new infection. We used time-based clinical criteria and pulsed-field gel electrophoresis-based molecular criteria to classify 13 cases of repeat infec ...
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Journal articleAm J Med · July 2005
PURPOSE: To describe clinical features and outcomes of enterococcal left-sided native valve endocarditis and to compare it to endocarditis caused by other pathogens. SUBJECTS AND METHODS: Patients in the International Collaboration on Endocarditis-Merged D ...
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Journal articleAntimicrob Agents Chemother · July 2005
Loss of agr function, vancomycin exposure, and abnormal autolysis have been linked with both development of the GISA phenotype and low-level resistance in vitro to thrombin-induced platelet microbicidal proteins (tPMPs). We examined the potential in vitro ...
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Journal articleJAMA · June 22, 2005
CONTEXT: The global significance of infective endocarditis (IE) caused by Staphylococcus aureus is unknown. OBJECTIVES: To document the international emergence of health care-associated S aureus IE and methicillin-resistant S aureus (MRSA) IE and to evalua ...
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Journal articleCirculation · June 14, 2005
BACKGROUND: Despite advances in medical, surgical, and critical care interventions, infective endocarditis remains a disease that is associated with considerable morbidity and mortality. The continuing evolution of antimicrobial resistance among common pat ...
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Journal articleCirculation · June 14, 2005
Background - Despite advances in medical, surgical, and critical care interventions, infective endocarditis remains a disease that is associated with considerable morbidity and mortality. The continuing evolution of antimicrobial resistance among common pa ...
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Journal articleClin Infect Dis · June 1, 2005
BACKGROUND: Telavancin, a novel lipoglycopeptide, exerts concentration-dependent, rapid bactericidal activity on account of its multiple mechanisms of action. Telavancin is highly active against gram-positive bacteria, including methicillin-resistant Staph ...
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Journal articleInfect Control Hosp Epidemiol · June 2005
OBJECTIVE: To examine the clinical outcomes and costs associated with Staphylococcus aureus bacteremia among hemodialysis-dependent patients. DESIGN: Prospectively identified cohort study. SETTING: A tertiary-care university medical center in North Carolin ...
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Journal articleClin Infect Dis · March 1, 2005
BACKGROUND: The role of both host and pathogen characteristics in hematogenous seeding following Staphylococcus aureus bacteremia is incompletely understood. METHODS: Consecutive patients with intravascular catheter-associated Staphylococcus aureus bactere ...
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Journal articleAm J Med · March 2005
PURPOSE: Staphylococcus aureus is a common cause of bacteremia and of native valve infective endocarditis. However, the risk of endocarditis in patients with a prosthetic valve who develop S. aureus bacteremia is unclear. The aim of this study was to defin ...
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Journal articleInfect Control Hosp Epidemiol · February 2005
OBJECTIVE: Comorbid conditions have complicated previous analyses of the consequences of methicillin resistance for costs and outcomes of Staphylococcus aureus bacteremia. We compared costs and outcomes of methicillin resistance in patients with S. aureus ...
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Journal articleEur Heart J · February 2005
AIMS: To investigate the clinical features, echocardiographic characteristics, management, and prognostic factors of mortality of aorto-cavitary fistulization (ACF) in infective endocarditis (IE). Extension of infection in aortic valve IE beyond valvular s ...
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Journal articlePediatrics · January 2005
PURPOSE: The prevalence of infective endocarditis (IE) among children with Staphylococcus aureus bacteremia (SAB) is unknown. The objective of this study was to determine prospectively the prevalence of IE among pediatric patients with SAB in a large terti ...
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Journal articleClin Infect Dis · November 15, 2004
Using a large cohort of patients from the International Collaboration on Endocarditis Merged Database, we compared coagulase-negative staphylococcal (CoNS) native-valve endocarditis (NVE) to NVE caused by more common pathogens. Rates of heart failure and m ...
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Journal articleJ Infect Dis · September 15, 2004
BACKGROUND: The causes of persistent bacteremia (PB) due to methicillin-resistant Staphylococcus aureus (MRSA) are poorly understood. This investigation examined potential associations between PB with key clinical features and several in vitro bacterial ge ...
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Journal articleCurr Infect Dis Rep · August 2004
Most cases of infective endocarditis (IE) are caused by gram-positive bacteria such as enterococci, streptococci, and staphylococci. Increasing resistance among these organisms has eroded the utility of mainstay antibiotics and complicated the management o ...
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Journal articleClin Infect Dis · June 1, 2004
Risk factors for developing postoperative mediastinitis (POM) due to methicillin-resistant Staphylococcus aureus (MRSA) were analyzed in a case-case control study of patients who underwent median sternotomy during the period from 1994 through 2000. Three p ...
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Journal articleClin Infect Dis · May 1, 2004
Staphylococcus aureus prosthetic valve infective endocarditis (SA-PVIE) is associated with a high mortality rate, but prognostic factors have not been clearly elucidated. The International Collaboration on Endocarditis merged database (ICE-MD) contained 22 ...
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Journal articleClin Infect Dis · April 15, 2004
Clinical management of infective endocarditis (IE) is expected to become more difficult with the emergence of Staphylococcus aureus with reduced susceptibility to vancomycin (SARV) in the United States and worldwide. We report the strain characterization a ...
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Journal articleCirculation · April 13, 2004
BACKGROUND: Data on early determinants of outcome in infective endocarditis (IE) are limited. We evaluated the prognostic significance of early clinical characteristics in a large, prospective cohort of patients with IE. METHODS AND RESULTS: Two hundred si ...
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Journal articleAm Heart J · April 2004
BACKGROUND: Although cardiac devices have been found to reduce symptoms and mortality rates in appropriate patient populations, the implications of certain important risks, such as infection, are incompletely understood. The purpose of this study was to us ...
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Journal articleAm Heart J · April 2004
The explosive growth in the use of cardiac devices and the continued large number of thoracic operations produce a significant number of costly infectious complications. These infections represent a leading cause of death and disability after device implan ...
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Journal articleAm J Pathol · April 2004
Staphylococcus aureus is the single most common cause of osteomyelitis in humans. Incidences of osteomyelitis caused by S. aureus have increased dramatically in recent years, in part due to the appearance of community-acquired antibiotic resistant strains. ...
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Journal articleScand J Infect Dis · 2004
Candida infective endocarditis (IE) is increasingly common, yet most reports have been single-center reviews. We evaluated 16 patients with Candida IE nested within a cohort of 2,022 patients with IE. Prosthetic valve IE was more common in patients with Ca ...
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Journal articleJ Med Microbiol · October 2003
Staphylokinase (SAK) is a plasminogen-activator protein produced by Staphylococcus aureus. SAK production was evaluated in vitro in S. aureus isolates from the bloodstream of patients with lethal (n = 56) and non-lethal (n = 57) bacteraemia and from anteri ...
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Journal articleChest · October 2003
BACKGROUND: Cardiac device (CD) endocarditis is an infrequent but potentially lethal infectious complication of permanent pacemakers or implantable cardioverter-defibrillators (ICDs), and mortality rates of 30 to 35% have been reported. Medical treatment h ...
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Journal articleArch Intern Med · September 22, 2003
BACKGROUND: Complications of Staphylococcus aureus bacteremia (SAB) are often difficult to identify. The ability to accurately predict the likelihood of these complications would impact patient management. This investigation sought to define readily availa ...
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Journal articleCirculation · July 8, 2003
BACKGROUND: Mediastinitis is a complication of coronary artery bypass graft surgery (CABG) that can be difficult to diagnose. This study evaluated the utility of blood culture results in identifying patients with mediastinitis. METHODS AND RESULTS: All uni ...
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Journal articleCardiol Clin · May 2003
Staphylococcus aureus is a leading cause of bacteremia and endocarditis. Over the past several years, the frequency of S aureus bacteremia (SAB) has increased dramatically. This increasing frequency, coupled with increasing rates of antibiotic resistance, ...
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Journal articleClin Infect Dis · March 1, 2003
Data for 479 patients were analyzed to assess the impact of methicillin resistance on the outcomes of patients with Staphylococcus aureus surgical site infections (SSIs). Patients infected with methicillin-resistant S. aureus (MRSA) had a greater 90-day mo ...
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Journal articleInfect Dis Clin North Am · June 2002
Staphylococcus aureus is a leading cause of bacteremia and endocarditis. Over the past several years, the frequency of S. aureus bacteremia (SAB) has increased dramatically. This increasing frequency, coupled with increasing rates of antibiotic resistance, ...
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Journal articleAntimicrob Agents Chemother · February 2002
Prosthetic heart valve sewing cuffs coated with minocycline and rifampin exhibited in vitro zones of inhibition against all 52 tested clinical isolates responsible for prosthetic valve endocarditis. An in vitro elution study of these coated sewing cuffs de ...
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Journal articleArch Intern Med · January 14, 2002
BACKGROUND: Limited data exist on recent demographic and microbiological changes in infective endocarditis (IE) and the impact of these changes on patient survival. METHODS: Data were collected from all patients with definite or possible IE at Duke Univers ...
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Journal articleCirculation · August 28, 2001
BACKGROUND: Although cardiac device infections (CDIs) are a devastating complication of permanent pacemakers or implantable cardioverter-defibrillators, the incidence of CDI in patients with bacteremia is not well defined. The objective of this study was t ...
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Journal articleMed Microbiol Immunol · April 2001
Although polysaccharide intercellular adhesin (PIA) is thought to be crucial in the pathogenesis of prosthetic device infections caused by Staphylococcus epidermidis, its role in prosthetic device infections caused by Staphylococcus aureus is unknown. To a ...
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Journal articleClin Infect Dis · February 15, 2001
We prospectively evaluated 53 patients with prosthetic joints and 27 patients with other orthopedic prosthetic devices who developed Staphylococcus aureus bacteremia (SAB). After exclusion of patients with primary postoperative infections, the risk of a pr ...
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Journal articleJ Infect Dis · October 2000
Platelet microbicidal proteins (PMPs) are small antimicrobial peptides secreted by mammalian platelets. In vitro resistance of Staphylococcus aureus strains to PMPs correlates with more extensive disease in experimental infective endocarditis (IE). To dete ...
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Journal articleClin Infect Dis · April 2000
Although the sensitivity and specificity of the Duke criteria for the diagnosis of infective endocarditis (IE) have been validated by investigators from Europe and the United States, several shortcomings of this schema remain. The Duke IE database contains ...
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Journal articleJ Clin Oncol · March 2000
PURPOSE: To determine the primary sources and secondary complications of Staphylococcus aureus bacteremia (SAB) in cancer patients, as well as predictors of outcome in cancer patients with SAB. PATIENTS AND METHODS: Fifty-two patients at Duke University Me ...
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Journal articleEmerg Infect Dis · 2000
We describe the first reported case of meningococcemia in a patient coinfected with hepatitis C virus and HIV. Hypocomplementemia secondary to hepatic dysfunction may have enhanced the patient's susceptibility to meningococcal infection. ...
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Journal articleJ Am Coll Surg · January 2000
BACKGROUND: Staphylococcus aureus is a frequent cause of infection and bacteremia in the postoperative patient. Unfortunately, there have been no prospective studies evaluating these patients, so the incidence of complications, subsequent treatment algorit ...
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Journal articleArch Intern Med · June 14, 1999
BACKGROUND: Previous studies give conflicting results regarding the effect of age on outcomes in Staphylococcus aureus bacteremia (SAB). These studies have been limited by retrospective design or small sample size. METHODS: We conducted a prospective cohor ...
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Journal articleCurr Infect Dis Rep · June 1999
Staphylococcus aureus bacteremia (SAB) is a serious and growing problem. A longstanding controversy in infectious diseases has centered around the duration of therapy for patients with SAB. Fortunately, the refinement of echocardiography and the creation o ...
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Journal articleAnn Intern Med · May 18, 1999
BACKGROUND: The appropriate duration of therapy for catheter-associated Staphylococcus aureus bacteremia is controversial. Conventional practice dictates that all patients receive prolonged courses of intravenous antibiotics. Some clinicians recommend abbr ...
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Journal articleAm J Trop Med Hyg · May 1999
Although amphotericin B desoxycholate is considered the most effective treatment for disseminated Paracoccidioides brasiliensis infections, little is known about the efficacy of lipid-based formulations of amphotericin B in this infection. In this study, w ...
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Journal articleJ Infect Dis · May 1999
To identify risk factors for relapse among 309 prospectively identified cases of Staphylococcus aureus bacteremia, patients with recurrent S. aureus bacteremia were identified, and pulsed-field gel electrophoresis (PFGE) was performed on isolates from both ...
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Journal articleClin Infect Dis · January 1999
Fifty-nine consecutive patients with definite Staphylococcus aureus infective endocarditis (IE) by the Duke criteria were prospectively identified at our hospital over a 3-year period. Twenty-seven (45.8%) of the 59 patients had hospital-acquired S. aureus ...
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Journal articleAntimicrob Agents Chemother · December 1998
Platelet microbicidal proteins (PMPs), small cationic peptides released at sites of endovascular damage, kill common bloodstream pathogens in vitro. Our group previously showed that in vitro resistance of clinical staphylococcal and viridans group streptoc ...
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Journal articleKidney Int · November 1998
BACKGROUND: Staphylococcus aureus bacteremia is frequently associated with metastatic complications and infective endocarditis (IE). The Duke criteria for the diagnosis of IE utilize echocardiographic techniques and are more sensitive than previous criteri ...
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Journal articleClin Infect Dis · September 1998
To determine whether recommendations of infectious diseases specialists affect outcome for patients, we evaluated 244 hospitalized patients with Staphylococcus aureus bacteremia. We offered our management recommendations to each patient's physicians and th ...
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Journal articleInfection · 1998
The first reported case of Clostridium septicum myonecrosis in an adult with aplastic anemia is described. The patient presented with sepsis, a parapharyngeal abscess that necessitated emergent intubation, and severe intravascular hemolysis attributed to c ...
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Journal articleClinical Infectious Diseases · December 1, 1997
The impact of infectious disease specialist involvement on the clinical outcome of hospitalized patients has been inadequately studied. To determine whether recommendations of infectious disease specialists affect the clinical outcome of hospitalized patie ...
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Journal articleClinical Infectious Diseases · December 1, 1997
An algorithm to define the duration of therapy for patients with Staphylococcus aureus bacteremia was prospectively tested. Recommendations for all patients with SAB were as follows: all removable foci of infection should be removed, surveillance blood cul ...
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Journal articleAm J Kidney Dis · October 1997
Infective endocarditis (IE) is one of the most serious complications of bacteremia. Hemodialysis patients with prosthetic vascular access devices such as dual-lumen cuffed venous catheters and polytetrafluoroethylene (PTFE) grafts are at increased risk for ...
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Journal articleJ Am Coll Cardiol · October 1997
OBJECTIVES: The purpose of this prospective study was to examine the role of echocardiography in patients with Staphylococcus aureus bacteremia (SAB). BACKGROUND: The reported incidence of infective endocarditis (IE) among patients with SAB varies widely. ...
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Journal articleScand J Infect Dis · 1997
We describe a case of rapidly progressive necrotizing cellulitis in an immunocompromised farmer caused by Bacillus cereus, and review 15 additional cases of serious soft tissue infection due to this organism reported in the English language literature. The ...
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Journal articleAm J Med · December 1996
BACKGROUND: Acute renal failure has long been associated with severe Rocky Mountain spotted fever (RMSF). Despite many descriptions of the protean manifestations of this disease, relatively little is known concerning the risk factors for acute renal failur ...
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Journal articleCurr Opin Cardiol · May 1994
Endocarditis continues to be a popular subject among medical authors. A steady stream of new papers describes evolving aspects of epidemiology, clinical manifestations, natural history, and management. Significant developments include refinements in echoca ...
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Journal articleJ Trop Med Hyg · December 1993
In order to assess the response of newly endemic falciparum malaria to currently used antimalarials, a field study was conducted in Amani, Tanzania. The efficacy of chloroquine (CQ) on Plasmodium falciparum was assessed by in-vivo and in-vitro methods. Fif ...
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Journal articleAm J Med Sci · December 1991
While acute splenic sequestration and splenic infarction are commonly observed in infants and young children with sickle cell anemia, they are rarely experienced by adult hemoglobin S homozygotes because the recurrent splenic infarction that takes place du ...
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Journal articleJ Surg Res · May 1991
Tumor-associated antigens (TAA) can be detected in the urine of sarcoma patients by a variety of assays. This study was designed to correlate antigen activity in three assays: complement fixation assay (CFA), enzyme-linked immunosorbent assay (ELISA), and ...
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