Michael Sweat, PhD is a Professor at the Family Services Research Center in the Department of Psychiatry and Behavioral Sciences at the Medical University of South Carolina (MUSC). He earned his Ph.D. in Medical Sociology from Emory University in 1992 and soon after joined the US Centers for Disease Control and Prevention as a Research Scientist working on HIV prevention and epidemiology research. Much of his work with the CDC was based in Thailand. Dr. Sweat later joined Family Health International as the Director of the Behavioral Research Unit, conducting a host of HIV-related prevention studies in developing countries in Africa, Latin America, and Asia. From 1995 through 2007 Dr. Sweat was a professor at the Johns Hopkins University, Bloomberg School of Public Health in the Department of International Health, and the Director of the Division of Social and Behavioral Intervention. Dr. Sweat joined the Family Services Research Center in 2007. His work is largely focused on HIV prevention interventions in developing country settings, with special emphasis on testing the efficacy of socio-ecological interventions, systematic review and meta-analysis, cost-effectiveness analysis, and mathematical modeling of epidemic processes. Some of his current studies include being PI for a large NIMH-funded community-randomized trial examining large scale HIV testing and counseling in rural Tanzania, and PI on a NIMH-funded systematic review and meta-analysis project addressing the efficacy of HIV behavioral interventions in developing countries. This study is being conducted in collaboration with the World Health Organization and Johns Hopkins University.