Daniel Singer is a physician and epidemiologist with expertise in global health, outbreak response, and health policy who has worked in multiple countries on five continents. After serving in the CDC’s Epidemic Intelligence Service, he held a series of distinguished positions at NIH, FDA, the State Department, and the White House, where he served on the National Security Council as the director for countering biological threats. Since leaving federal service, he has continued to focus on global health, emerging biological threats, and the integration of science and policy.