In this episode of Talk Nerdy, Cara is joined by Dr. Paul A. Offit, MD. He is the director of the Vaccine Education Center, an attending physician in the Division of Infectious Diseases at the Children’s Hospital of Philadelphia, and a professor of pediatrics at the Perelman School of Medicine at the University of Pennsylvania. We discuss his 2021 book, “You Bet Your Life: From Blood Transfusions to Mass Vaccinations—The Long and Risky History of Medical Innovations.” Follow Paul: @DrPaulOffit