Sydney Rosen

Sydney Rosen's research focuses on how HIV treatment services are organized and delivered in sub-Saharan Africa, especially in South Africa, Zambia, and Malawi. Much of the work evaluates 'differentiated service delivery' models—approaches that vary how often and where patients pick up medication or see providers—and studies their effects on patient retention in care, viral suppression, healthcare worker workload, and cost-effectiveness. This research combines health economics, implementation science, and public health methods (modeling, cohort analysis, surveys, and trials) to inform HIV treatment policy in low- and middle-income countries.

Publication output has grown fairly steadily over the past decade, rising from about 13 papers per year in 2017-2019 to over 20 per year in 2024-2025.

Generated by claude-sonnet-5 from public bibliographic data · Jul 20, 2026