David Brett-Major, MD MPH, is an Internal Medicine and Infectious Diseases physician. He has worked at home, in South America, Africa, and Asia as a clinician, educator, researcher, and in health emergency risk management. He has been part of filovirus emergency response in Guinea, Nigeria, Sierra Leone, and Uganda. David has worked in health security policy on issues such as research in emergencies, Dual Use Research of Concern, high consequence pathogens including pandemic influenza, and all hazards preparedness, and as part of global alert and response coordination against Ebola virus disease, Middle East respiratory syndrome coronavirus, and avian influenza A(H7N9). His research interests focus on risk, how it may be identified, characterized, and managed from patient- and community-centered vantages, particularly related to emerging infectious diseases. He is a fellow of both the American College of Physicians and the Royal College of Physicians, Edinburgh, and the Past President of the Clinical Group of the American Society of Tropical Medicine and Hygiene.