On this day in 1954: Polio vaccine is first given to a large group of children in Pittsburgh. One year later, the vaccine was proclaimed safe on April 12, 1954. #science - ThreadSky

gmbutler.bsky.social • 9 days ago

On this day in 1954:

Polio vaccine is first given to a large group of children in Pittsburgh. One year later, the vaccine was proclaimed safe on April 12, 1954.
#science