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Deng Madut

Assistant Professor of Medicine
Medicine, Infectious Diseases

Selected Publications


Mass Spectrometry-Based Quantification of Proteins and Post-Translational Modifications in Dried Blood: Longitudinal Sampling of Patients With Sepsis in Tanzania.

Journal Article Proteomics · December 3, 2025 The proteomic analysis of blood is routine for disease phenotyping and biomarker development. Blood is commonly separated into soluble and cellular fractions. However, this can introduce pre-analytical variability, and analysis of a single component (which ... Full text Link to item Cite

Antibodies to tick salivary antigens AV422 and calreticulin in patients with spotted fever group rickettsioses and other febrile illnesses in northern Tanzania.

Journal Article J Infect Dis · October 6, 2025 BACKGROUND: Timely and accurate diagnosis of spotted fever rickettsioses (SFR) is difficult due to non-specific symptoms and testing challenges. We evaluated serum antibodies to tick salivary proteins, AV422 and calreticulin, as potential markers of recent ... Full text Link to item Cite

BAYESIAN LEARNING OF CLINICALLY MEANINGFUL SEPSIS PHENOTYPES IN NORTHERN TANZANIA.

Journal Article Ann Appl Stat · September 2025 Sepsis is a life-threatening condition caused by a dysregulated host response to infection. Recently, researchers have hypothesized that sepsis consists of a heterogeneous spectrum of distinct subtypes, motivating several studies to identify clusters of se ... Full text Link to item Cite

Population structure of Escherichia coli isolated from the human bloodstream, human and animal feces, and the environment in northern Tanzania.

Journal Article J Infect Dis · August 19, 2025 BACKGROUND: Extraintestinal pathogenic Escherichia coli (ExPEC) are a leading cause of human bloodstream infections (BSI) in sub-Saharan Africa, yet few studies have characterized African strains implicated in BSI or explored their potential reservoirs. ME ... Full text Link to item Cite

Epidemiologic and Genomic Characterization of an Outbreak of Rift Valley Fever Among Humans and Dairy Cattle in Northern Tanzania.

Journal Article J Infect Dis · August 14, 2025 BACKGROUND: A periurban outbreak of Rift Valley fever virus (RVFV) among dairy cattle from May through August 2018 in northern Tanzania was detected through testing samples from prospective livestock abortion surveillance. We sought to identify concurrent ... Full text Link to item Cite

Healthcare utilisation for febrile diseases in northern Tanzania: a randomised population-based cluster survey.

Journal Article BMJ Glob Health · March 6, 2025 BACKGROUND: We conducted a randomised population-based cluster survey in northern Tanzania to assess care-seeking behaviours in the context of a febrile illness. Our objectives were to determine the most effective points for intervention during initial fev ... Full text Link to item Cite

Seroprevalence and risk factors for Crimean-Congo hemorrhagic fever virus exposure among febrile patients in northern Tanzania.

Journal Article Trop Med Int Health · March 2025 BACKGROUND: Crimean-Congo hemorrhagic fever is a tick-borne zoonotic disease that may be severe and is present in many African countries. We aimed to understand the seroprevalence and risk for Crimean-Congo hemorrhagic fever virus in Tanzania by testing ar ... Full text Link to item Cite

TaqMan Array Card real-time polymerase chain reaction panel to detect pathogens in whole blood of febrile inpatients in northern Tanzania, 2016-2019.

Journal Article Trop Med Int Health · March 2025 BACKGROUND: Acute febrile illness is a common reason for seeking healthcare in low- and middle-income countries. We describe the diagnostic utility of a TaqMan Array Card (TAC) real-time polymerase chain reaction (PCR) panel for pathogen detection in paedi ... Full text Link to item Cite

Exploring perceptions of the services offered in Tanzanian sober houses: a mixed- methods study among service users and providers.

Journal Article BMC Health Serv Res · February 14, 2025 BACKGROUND: In Tanzania, residential treatment centers for alcohol and other drugs, locally known as "sober houses," play a critical role in the treatment of people living with a substance use disorder (SUD), but little is known about the services they off ... Full text Link to item Cite

Clinical Utility of Plasma Microbial Cell-Free DNA Sequencing Among Immunocompromised Patients With Pneumonia.

Journal Article Open 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 ... Full text Link to item Cite

Plasma Microbial Cell-Free DNA Sequencing in Immunocompromised Patients With Pneumonia: A Prospective Observational Study.

Journal Article Clin 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: ... Full text Link to item Cite

Predictors of prior HIV testing and acceptance of a community-based HIV test offer among male bar patrons in northern Tanzania.

Journal Article PLOS Glob Public Health · 2024 Community-based HIV testing offers an alternative approach to encourage HIV testing among men in sub-Saharan Africa. In this study, we evaluated a community-based HIV testing strategy targeting male bar patrons in northern Tanzania to assess factors predic ... Full text Link to item Cite

Host-response transcriptional biomarkers accurately discriminate bacterial and viral infections of global relevance.

Journal Article Sci Rep · December 18, 2023 Diagnostic limitations challenge management of clinically indistinguishable acute infectious illness globally. Gene expression classification models show great promise distinguishing causes of fever. We generated transcriptional data for a 294-participant ... Full text Link to item Cite

Etiologic Investigation of Patients Diagnosed with Bacteriologically Unconfirmed Tuberculosis in Tanzania.

Journal Article Am J Trop Med Hyg · October 4, 2023 Globally, half of patients with pulmonary tuberculosis (PTB) are diagnosed clinically without bacteriologic confirmation. In clinically diagnosed PTB patients, we assessed both the proportion in whom PTB could be bacteriologically confirmed by reference st ... Full text Link to item Cite

Antibacterial Utilization for Febrile Illnesses and Laboratory-Confirmed Bloodstream Infections in Northern Tanzania.

Journal Article Open Forum Infect Dis · August 2023 BACKGROUND: We describe antibacterial use in light of microbiology data and treatment guidelines for common febrile syndromes in Moshi, Tanzania. METHODS: We compared data from 2 hospital-based prospective cohort studies, cohort 1 (2011-2014) and cohort 2 ... Full text Open Access Link to item Cite

Performance of Xpert Ultra nasopharyngeal swab for identification of tuberculosis deaths in northern Tanzania.

Journal Article Clin Microbiol Infect · August 2022 OBJECTIVE: Numerous tuberculosis (TB) deaths remain undetected in low-resource endemic settings. With autopsy-confirmed tuberculosis as our standard, we assessed the diagnostic performance of Xpert MTB/RIF Ultra (Ultra; Cepheid) on nasopharyngeal specimens ... Full text Open Access Link to item Cite

A community health worker delivered intervention to address hypertension among adults engaged in HIV care in northern Tanzania: Outcomes from a pilot feasibility study.

Journal Article J Clin Hypertens (Greenwich) · August 2022 Current care models are inadequate to address the dual epidemic of hypertension and HIV in sub-Saharan Africa. We developed a community health worker (CHW)-delivered educational intervention, integrated into existing HIV care to address hypertension in per ... Full text Link to item Cite

Facility-based disease surveillance and Bayesian hierarchical modeling to estimate endemic typhoid fever incidence, Kilimanjaro Region, Tanzania, 2007-2018.

Journal Article PLoS Negl Trop Dis · July 2022 Growing evidence suggests considerable variation in endemic typhoid fever incidence at some locations over time, yet few settings have multi-year incidence estimates to inform typhoid control measures. We sought to describe a decade of typhoid fever incide ... Full text Open Access Link to item Cite

Hypertension among adults enrolled in HIV care in northern Tanzania: comorbidities, cardiovascular risk, and knowledge, attitudes and practices.

Journal Article Pan Afr Med J · 2022 CITE THIS ARTICLE: Preeti Manavalan et al. Hypertension among adults enrolled in HIV care in northern Tanzania: comorbidities, cardiovascular risk, and knowledge, attitudes and practices. Pan African Medical Journal. 2022;41(285). 10.11604/pamj.2022.41.285 ... Full text Link to item Cite

Trends in fever case management for febrile inpatients in a low malaria incidence setting of Tanzania.

Journal Article Trop Med Int Health · December 2021 OBJECTIVES: In 2010, WHO published guidelines emphasising parasitological confirmation of malaria before treatment. We present data on changes in fever case management in a low malaria transmission setting of northern Tanzania after 2010. METHODS: We compa ... Full text Open Access Link to item Cite

Performance Assessment of the Universal Vital Assessment Score vs Other Illness Severity Scores for Predicting Risk of In-Hospital Death Among Adult Febrile Inpatients in Northern Tanzania, 2016-2019.

Journal Article JAMA Netw Open · December 1, 2021 IMPORTANCE: Severity scores are used to improve triage of hospitalized patients in high-income settings, but the scores may not translate well to low- and middle-income settings such as sub-Saharan Africa. OBJECTIVE: To assess the performance of the Univer ... Full text Open Access Link to item Cite

Incidence of Acute Myocardial Infarction in Northern Tanzania: A Modeling Approach Within a Prospective Observational Study.

Journal Article J Am Heart Assoc · August 3, 2021 Background Rigorous incidence data for acute myocardial infarction (AMI) in sub-Saharan Africa are lacking. Consequently, modeling studies based on limited data have suggested that the burden of AMI and AMI-associated mortality in sub-Saharan Africa is low ... Full text Open Access Link to item Cite

Increasing the Uptake of HIV Testing among Men in Tanzania: A Novel Intervention for Bar Patrons.

Journal Article AIDS Behav · July 2021 Featured Publication We investigated a novel community-based HIV testing and counseling (HTC) strategy by recruiting men from bars in northern Tanzania in order to identify new HIV infections. All bars in the town of Boma Ng'ombe were identified and male patrons were systemati ... Full text Link to item Cite

Hypertension burden and challenges across the hypertension treatment cascade among adults enrolled in HIV care in northern Tanzania.

Journal Article J Clin Hypertens (Greenwich) · August 2020 Failure to address hypertension among people living with HIV (PLWH) may undermine the significant progress made toward reducing mortality among this high-risk population in sub-Saharan Africa (SSA). Here, the authors report hypertension prevalence, diagnos ... Full text Link to item Cite

A prospective study of Escherichia coli bloodstream infection among adolescents and adults in northern Tanzania.

Journal Article Trans R Soc Trop Med Hyg · May 7, 2020 BACKGROUND: Characterization of the epidemiology of Escherichia coli bloodstream infection (BSI) in sub-Saharan Africa is lacking. We studied patients with E. coli BSI in northern Tanzania to describe host risk factors for infection and to describe the ant ... Full text Open Access Link to item Cite

Predictors of mortality in treatment experienced HIV-infected patients in northern Tanzania.

Journal Article PLoS One · 2020 Featured Publication BACKGROUND: While factors that drive early mortality among people living with HIV (PLWH) initiating antiretroviral therapy (ART) in sub-Saharan Africa (SSA) have been described, less is known about the predictors of long-term mortality for those with ART e ... Full text Link to item Cite

Research Participation of a Professional Organization in Clinical Trials: The Association of Black cardiologists Clinical Trial Investigator Identification Project.

Journal Article J Natl Med Assoc · April 2019 INTRODUCTION: Black individuals continue to be underrepresented in clinical trials despite efforts by the National Institutes of Health and the Federal Drug Administration to increase their enrollment. Health care providers play a critical role in the recr ... Full text Link to item Cite

Self-medication with non-prescribed pharmaceutical agents in an area of low malaria transmission in northern Tanzania: a community-based survey.

Journal Article Trans R Soc Trop Med Hyg · April 1, 2019 BACKGROUND: Self-treatment with antimicrobials is common in sub-Saharan Africa. Little is known about the prevalence of this practice where malaria transmission intensity is low, and little is known about the prevalence of self-treatment with other medicat ... Full text Link to item Cite

Knowledge of myocardial infarction symptoms and perceptions of self-risk in Tanzania.

Journal Article Am Heart J · April 2019 BACKGROUND: Little is known about community knowledge of myocardial infarction symptoms and perceptions of self-risk in sub-Saharan Africa. METHODS: A community survey was conducted in northern Tanzania, where the prevalence of cardiovascular risk factors ... Full text Link to item Cite

Perceptions of chest pain and healthcare seeking behavior for chest pain in northern Tanzania: A community-based survey.

Journal Article PLoS One · 2019 BACKGROUND: Little is known about community perceptions of chest pain and healthcare seeking behavior for chest pain in sub-Saharan Africa. METHODS: A two-stage randomized population-based cluster survey with selection proportional to population size was p ... Full text Link to item Cite

Perceptions of Stroke and Associated Health-Care-Seeking Behavior in Northern Tanzania: A Community-Based Study.

Journal Article Neuroepidemiology · 2019 BACKGROUND: Little is known about knowledge of stroke symptoms, perceptions of self-risk, and health-care-seeking behavior for stroke in East Africa. METHODS: A 2-stage randomized population-based cluster survey with selection proportional to population si ... Full text Link to item Cite

The Burden of Hypertension and Diabetes in an Emergency Department in Northern Tanzania.

Journal Article Ethn Dis · 2019 INTRODUCTION: Little is known about the burden of hypertension and diabetes on emergency department (ED) utilization and hospitalizations in sub-Saharan Africa. METHODS: A retrospective review of adult ED patients in northern Tanzania was performed from Se ... Full text Link to item Cite

A Mixed Methods Approach to Understanding Antiretroviral Treatment Preferences: What Do Patients Really Want?

Journal Article AIDS Patient Care STDS · September 2018 As the number of effective antiretroviral therapy (ART) options increases, there is greater opportunity to involve HIV patients in ART selection. To establish the parameters for a shared ART decision-making process, we sought to identify ART characteristic ... Full text Link to item Cite

Pulmonary blastomycosis presenting as primary lung cancer.

Journal Article BMC Infect Dis · July 18, 2018 BACKGROUND: Blastomycosis is an endemic mycosis in North America that is caused by the dimorphic fungus Blastomyces dermatitidis. The illness is a systemic disease with a wide variety of pulmonary and extra-pulmonary manifestations. The initial presentatio ... Full text Open Access Link to item Cite