I am an Assistant Professor of Epidemiology at the London School of Hygiene and Tropical Medicine and is also affiliated with the MRC Tropical Epidemiology Group.

At present, I am the epidemiologist supporting the HIV STAR (HIV Self Testing in AfRica) project, which will investigate the clinical performance of HIV oral-fluid self-tests, identify social harms associated with the introduction of self-tests, and test the effectiveness of different HIV self-test distribution methods in increasing recent testing rates and linkage to HIV-related care. This research will support the distribution of HIV self-tests in Zambia, Zimbabwe, and Malawi, as well as the development of WHO guidelines for policies promoting HIV self-testing worldwide.

My other areas of research interest include: the role of economic development and public policy in shaping health and health disparities; community-level determinants of health and health behaviours; and the social determinants of under- and over-nutrition in low and middle income settings. I hold a Doctor of Science degree from the Harvard School of Public Health and an MSc in urban planning from Columbia University.