Paul Offit, MD is a Professor in the Division of Infectious Diseases and the Director of the Vaccine Education Center at the Children's Hospital of Philadelphia. He reviews the details of the 1991 Philadelphia measles epidemic and the measures taken by the city to stop it. Offit specializes in infectious diseases and on vaccines, immunology, and virology. Series: "UCLA Pediatric Grand Rounds" [Health and Medicine] [Show ID: 29221]