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David joined the Surveillance and Epidemiology program at the Bill & Melinda Gates Foundation in May 2016 after serving as a physician epidemiologist in the Navy. Currently he leads the Genomics, Epidemiology & Modelling initiative on the Enterics, Diagnostics, Epidemiology & Modelling team. In his 21-year Navy career, he served as Director of Infectious Diseases Research at Bethesda Naval Hospital, Department Head of Infectious Diseases on the hospital ship USNS COMFORT, and Director of the Emerging Infections Department at the Naval Medical Research Unit Six in Peru. His work there involved developing disease surveillance systems in resource limited settings, working with local officials in responding to outbreaks, and characterizing several novel pathogens. After returning to Washington, D.C., he directed the Department of Defense’s global disease surveillance efforts and contributed to the Department’s global health security work. He served as the chief advisor to the Navy Surgeon General on Infectious Diseases as well as on several National Security Staff/interagency working groups dealing with global health security and health diplomacy. His academic work has appeared in Science, Nature, and the LancetID, and he recently edited a textbook on technological innovations in disease surveillance. He has previously served on the Institute of Medicine’s Forum on Microbial Threats, the Infectious Disease Society of America’s Global Public Health Committee/Pandemic Influenza Tas