Mark Lurie, Ph.D., is a social epidemiologist working on the concurrent HIV/AIDS, STI, and TB epidemics in sub-Saharan Africa. He has studied the role of migration in the spread of HIV in South Africa, a 3-year cohort study with behavioural and biological outcomes. His current research focuses the public health impact of antiretroviral HIV therapy on secondary HIV transmission in South Africa, for which he holds an NIH Mentored Research Scientist Development Award (K-01) grant through the National Institute of Mental Health.