Milestones in the Effort to Eradicate Polio [Timeline]

Advances in the 1950s and 1960s, including unprecedented cooperation between Soviet and U.S. scientists , allowed polio to be eradicated throughout the Americas by 1994 and all of Europe in 1998. Eliminating the crippling scourge has been more difficult , however, in some parts of Africa and Asia.

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Milestones in the Effort to Eradicate Polio [Timeline]