April 12th: The Polio Vaccine Is Approved
Reflections of History - Een podcast door Audacy Studios | Shining City Audio
Categorieën:
On April 12th, 1955, in Ann Arbor, Michigan, Dr. Jonas Salk’s vaccine for polio was approved. To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices
