Tip - 8 Things You May Not Know About Jonas Salk and the Polio Vaccine

Published  | Submitted by William Heurdier
8 Things You May Not Know About Jonas Salk and the Polio Vaccine

On the centennial of Jonas Salk’s birth, explore eight surprising facts about the groundbreaking polio vaccine that he developed.

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Posted: 9 years, 5 month(s) ago

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