What to Know About Polio: Vaccines, Symptoms and How It Spreads - The New York Times

A recent case in a New York suburb has reignited concerns over the disease.

Even after someone recovers from polio, they can develop muscle pain, weakness or paralysis 15 to 40 years later. Children who recover from polio may experience post-polio syndrome as adults, with mu… [+2061 chars]

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