Harriet Nuwagaba-Biribonwoha is a medical doctor and assistant professor of Epidemiology at Mailman School of Public Health. She is the research director at ICAP in Eswatini and clinical research site (CRS) Leader at the Eswatini Prevention Center CRS. She oversees a diverse portfolio of clinical research, program evaluations, implementation science, surveys, and surveillance activities. She leads multiple projects as a local principal investigator, including HIV Prevention trials with oral and injectable PrEP, COVID-19 and HPV vaccination among people living with HIV, as well as diagnosis and management of sexually transmitted infections. Her work has included leadership of two Eswatini Population HIV Impact Assessments (PHIA), conducted in 2016 and 2021, the 2022 Eswatini Violence Against Children Survey (VACS), surveillance programs to provide real-time data on HIV recent infections, and HIV case-based surveillance programs, as well as sentinel and ports-of-entry (POE) surveillance activities for COVID-19, acute febrile illnesses and influenza-like illnesses in support of the global health security agenda (GHSA). She teaches Implementation Science in Public Health Programs at the Columbia University Epidemiology and Population Health Summer Institute (episummer@columbia) and is a member of the Implementation Science Committee in the HIV Prevention Trials Network (HPTN). She has over 70 publications in peer-reviewed journals and is a member of the Conference on Retroviruses and Opportunistic Infections (CROI) Scientific Program Committee.