What was the life-saving vaccine invented in the 1950s?

Retry
Correct
Incorrect
Jonas Salk invented the Polio vaccine. He tested it on himself and his family in 1953. One year later, over a million children in Canada, Finland, and the U.S. were vaccinated.
Fox Photos/Getty Images
Fox Photos/Getty Images
What was the life-saving vaccine invented in the 1950s?
- Polio
- Small Pox
- Chicken Pox
- Tuberculosis
Scroll down to continue on!