Paul A. Offit M.D. is a professor of pediatrics in the Division of Infectious Diseases; Director of the Vaccine Education Center at the Children's Hospital of Philadelphia; and Professor of Vaccinology at the Perelman School of Medicine at the University of Pennsylvania. He has been a member of the Centers for Disease Control and Prevention Advisory Committee on Immunization Practices, is a Board Member of Every Child by Two and is a founding member of the Autism Science Foundation. He is an expert on vaccines, immunology, and virology. The co-inventor of RotoTeq, a rotavirus vaccine, Dr. Offit is credited with saving hundreds of lives every day. He has appeared on The Colbert Report, CBS This Morning, The Daily Show with John Stewart, 60 Minutes, Inside Edition, the PBS Newshour with Jim Lehrer, and Democracy Now, among others. He is the author of hundreds of publications, and 10 books, including: Bad Faith: When Religious Belief Undermines Modern Medicine; Do You Believe in Magic: The Sense and Nonsense of Alternative Medicine; Pandora’sLab: Seven Stories of Science Gone Wrong; several books on vaccines; and Bad Advice: or, Why Celebrities, Politicians, and Activists Aren’t Your Best Source of Health Information. This episode may also be viewed on youtube.