(Click on the lower right side of the Index Box to search for specific topics) Video Archive Sep 16, 2025 September 2025 Newsletter Sep 16, 2025 Sep 16, 2025 Sep 16, 2025 Vaccine-Derived Polioviruses (Video) Sep 16, 2025 Sep 16, 2025 Sep 14, 2025 Shoulders: Managing the Pain Sep 14, 2025 Sep 14, 2025 Sep 10, 2025 The Real Reason Polio is so Dangerous (Video) Sep 10, 2025 Sep 10, 2025 Sep 2, 2025 Vaccines and Teens: The Busy Social Years (PDF Download) Sep 2, 2025 Sep 2, 2025 Sep 2, 2025 STEM Careers (PDF Download) Sep 2, 2025 Sep 2, 2025 Aug 29, 2025 The Innate and Adaptive Immune Systems (Video) Aug 29, 2025 Aug 29, 2025 Aug 29, 2025 Pennsylvania: At the forefront in the prevention of infectious diseases_CHOP private (Video) Aug 29, 2025 Aug 29, 2025 Aug 28, 2025 Careers in Healthcare (PDF Download) Aug 28, 2025 Aug 28, 2025 Aug 28, 2025 Q&A with Dr. Offit (Video) Aug 28, 2025 Aug 28, 2025 Aug 28, 2025 Careers in Healthcare (Video) Aug 28, 2025 Aug 28, 2025 Aug 28, 2025 The History and Science of Vaccines (Video) Aug 28, 2025 Aug 28, 2025