Something unprecedented just happened at the Centers for Disease Control and Prevention. A newly reconstituted advisory committee voted to recommend delaying hepatitis B vaccination for most babies. The vote overturns a 30-year policy that led to a massive decline in infant infections. In today’s episode, Ken talks with former CDC Director of the National Center for Immunization and Respiratory Diseases Dr. Demetre Daskalakis. Daskalakis spent decades fighting on the front lines of America's toughest public health battles. He brought HIV testing to the communities that needed it most. He stopped a meningitis outbreak in its tracks and he led the national Mpox response. He left the CDC in August. Demetre breaks down the recent shake-up at the CDC and why the best sign that federal public health efforts are working are that they’re not in the news – unlike today.