Skip to Main Content



Instructors are internationally recognized experts in epidemiology, biostatistics and health policy modeling.
  • Associate Professor of Biostatistics, Associate Professor of Ecology and Evolutionary Biology, Associate Professor of Management, and Associate Professor of Statistics and Data Science; Co-director, Public Health Modeling Concentration

    Forrest W. Crawford PhD is Associate Professor, Department of Biostatistics, Yale School of Public Health, Department of Statistics & Data Science, Department of Ecology & Evolutionary Biology, and Yale School of Management (Operations). His research is focused on causal inference, networks, stochastic processes, and optimization for applications in epidemiology, public health, and social science. He is affiliated with the Center for Interdisciplinary Research on AIDS, the Institute for Network Science, the Computational Biology and Bioinformatics program, and the Public Health Modeling Concentration. Since the beginning of the COVID-19 pandemic, he has advised the Connecticut Department of Public Health by providing model projections of infections, cases, hospitalizations, and deaths, as well as analysis of vaccination programs. He is the recipient of the NIH Director’s New Innovator Award and a Yale Center for Clinical Investigation Scholar Award.
  • Associate Professor of Epidemiology (Microbial Diseases); Affiliated Faculty, Yale Institute for Global Health

    Virginia Pitzer ScD is Associate Professor in the Department of Epidemiology of Microbial Diseases at Yale School of Public Health. Her research focuses on mathematical modeling of the transmission dynamics of infectious diseases, including rotavirus, respiratory syncytial virus, and typhoid fever. She studies how interventions such as vaccination, improved treatment of cases, and improvements in sanitation affect disease transmission at the population level. During the COVID-19 pandemic, she has worked on examining how changes in testing practices affect estimates of coronavirus transmission; estimating incidence of SARS-CoV-2 infections from observed cases and deaths (; and determining the impact of vaccination on household transmission. She is a member of the World Health Organization’s Immunization and Vaccine-related Implementation Research Advisory Committee and Deputy Editor-in-Chief of PLoS Computational Biology.
  • Professor of Public Health (Health Policy), Professor of Management, and Professor in the Institution for Social and Policy Studies; Co-director, Public Health Modeling Concentration; Affiliated Faculty, Yale Institute for Global Health

    A. David Paltiel MBA PhD is Professor, Department of Health Policy and Management, Yale School of Public Health and Yale School of Management. His research focuses on model-based cost-effectiveness of health and medical interventions. He has served on five expert panels convened by the Institute of Medicine under mandates from the United States Congress and on the editorial boards of both Medical Decision Making and Value in Health. During the COVID-19 pandemic, he has advised more than 20 US colleges on their reopening plans and has led numerous high-profile studies of vaccine implementation and home-based rapid testing for SARS-CoV-2.