Overview
Broadly, my research focuses on a range of clinical and social issues that affect persons living with or at risk for HIV infection in resource-poor settings. In Tanzania, our group is applying novel methods to optimize HIV testing uptake among high-risk groups. We recently demonstrated that the Discrete Choice Experiment (DCE), a form of stated preference survey research, is a robust tool for identifying (a) which characteristics of HIV testing options are most preferred by different populations and (b) which tradeoffs individuals make in evaluating testing options. Building on more than a decade of productive HIV testing research in the Kilimanjaro Region, the next phase of our NIMH funded project will test the hypothesis that DCE-derived HIV testing options significantly increases rates of testing among groups at high risk for HIV infection. This work holds promise not only for optimizing HIV testing uptake in the Kilimanjaro Region, but also for applying novel tools in the service of translational epidemiology and implementation research.
Current Appointments & Affiliations
Recent Publications
Alterations of the Upper Respiratory Microbiome Among Children Living With HIV Infection in Botswana.
Journal Article J Infect Dis · October 15, 2025 Children living with HIV (CLWH) are at high risk of colonization and infection by respiratory pathogens, though this risk can be reduced by other microbes in the upper respiratory microbiome. The impact of HIV infection on the pediatric upper respiratory m ... Full text Link to item CiteDesign of an Automated Mobile Phone-Based Reminder and Incentive System: Application in a Quasi-Randomized Controlled Trial to Improve the Timeliness of Childhood Vaccinations in Tanzania.
Journal Article JMIR Form Res · September 10, 2025 BACKGROUND: The global penetration of mobile phones has offered novel opportunities for communicating health-related information to individuals. A low-cost system that facilitates autonomous communication with individuals via mobile phones holds potential ... Full text Link to item CiteTo Whom Will You Send Automated Confidential SMS Invitations to Test for HIV? Results From an Acceptability Pilot Study in Northern Tanzania.
Journal Article Sex Transm Dis · August 1, 2025 The Confidential Social Network Referrals for HIV Testing (CONSORT) intervention leverages the ubiquity of mobile phones and social networks to nudge at-risk populations to test for HIV. Pilot results suggest that confidential SMS testing invitations are a ... Full text Link to item CiteRecent Grants
Interdisciplinary Research Training Program in AIDS
Inst. Training Prgm or CMEPrincipal Investigator · Awarded by National Institutes of Health · 2010 - 20302/3 CTSA K12 Program at Duke University
ResearchMentor · Awarded by National Institutes of Health · 2025 - 2030Cardiac function and proteomic biomarkers in individuals with perinatal HIV infection or exposure
ResearchCo Investigator · Awarded by National Institutes of Health · 2025 - 2030View All Grants