Sten Vermund, MD, PhD served as HPTN principal investigator from 2006-2012. He now serves as chair of the HPTN Scientific Review Committee and a member of the Executive Committee. Dr. Vermund is dean and Anna M.R. Lauder Professor of Epidemiology (microbial diseases) at the Yale School of Public Health and professor of pediatrics at the Yale School of Medicine in New Haven, CT. He served as chief of the Epidemiology Branch, and later the Vaccine Trials and Epidemiology Branch in the Division of AIDS at NIAID/NIH from 1988-1994.