1 Daniel B. Jernigan is the director for the National Center for Emerging and Zoonotic Infectious Diseases, US Centers for Disease Control and Prevention (CDC), Atlanta, GA, and is former deputy director for public health science and surveillance, CDC. Dylan George is the director of operations for the Center for Forecasting and Outbreak Analytics (CFA), CDC. Marc Lipsitch is the director of science for the CFA, CDC, and is director for the Center for Communicable Disease Dynamics, Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA.