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jan 1, 1955 - Polio Vaccine

Description:

Jonas Salk discovers the polio vaccine. Polio was a disease that killed, and permanently crippled people (often in childhood) around the world. Salk's discovery helped save countless lives and prevented huge amounts of suffering.

Added to timeline:

8 Feb 2023
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Date:

jan 1, 1955
Now
~ 70 years ago

Images: