Richard Besser is ABC News’ chief health and medical editor. In this role, he provides medical analysis and commentary for all ABC News broadcasts and platforms, including World News with David Muir, Good Morning America, and Nightline. Besser came to ABC News from the Centers for Disease Control and Prevention (CDC), where he served as director of the Coordinating Office for Terrorism Preparedness and Emergency Response. He also served as acting director for the CDC. Besser began his career at the CDC in 1991 in the Epidemic Intelligence Service. Following this, he served for five years on the faculty of the University of California, San Diego, as the pediatric residency director. While in San Diego he worked for the county health department on the control of pediatric tuberculosis. He returned to the CDC in 1998, where he served in various capacities, including epidemiology section chief in the Respiratory Diseases Branch. He received a Surgeon General’s Medallion award for his leadership during the H1N1 response. Besser holds a B.A. in economics from Williams College and received his medical degree from the University of Pennsylvania. He completed a residency and chief residency in pediatrics at Johns Hopkins University Hospital in Baltimore, Maryland.