Marcia Castro is Andelot Professor of Demography, and chair of the Department of Global Health and Population at the Harvard TH Chan School of Public Health, associate faculty of the Harvard University Center for the Environment, faculty member of the Harvard Center for Population and Development Studies, and co-director of the Brazil Studies Program of the David Rockefeller Center for Latin American Studies (DRCLAS). Her research focuses on the development and use of multidisciplinary approaches to identify the determinants of infectious disease transmission in different ecological settings to inform control policies. She has expertise in geospatial methods,population dynamics, and mortality. Castro has projects on COVID-19, dengue, Zika virus, chikungunya, tuberculosis, infant/child mortality and development, and climate change in the Brazilian Amazon. She earned her PhD in Demography from Princeton University.