Dr. Laeyendecker is a laboratory scientist and infectious disease epidemiologist engaged in studies of HIV, HCV and HSV-2 both domestically and internationally. Primary areas of interest include the development of methods for estimating incidence from cross-sectional surveys, the impact of HIV subtype on disease progression, and the development of serologic and molecular tools to investigate questions related to infectious disease epidemiology. Oliver has worked in infectious disease laboratories since 1990 and holds a PhD in epidemiology, a MS in biotechnology and an MBA all from Johns Hopkins University. He is employed by the NIAID as a Staff Scientist, where he manages the International HIV & STD laboratory of Dr. Thomas C. Quinn. He also has an appointment as an Assistant Professor of Medicine in the Division of Infectious Diseases in the Department of Medicine of Johns Hopkins University and holds a joint appointment as an Assistant Professor in Epidemiology at the Johns Hopkins Bloomberg School of Public Health. He works closely with the Rakai Health Sciences Program and the HIV Preventions Trials Network.