'How do I know if I was I vaccinated for polio?' and other trending questions about the virus, answered by a doctor - CNBC

The first U.S. polio case since 2013 was detected last month. A doctor answers 'Was I vaccinated for polio?' and other urgent questions about the virus.

Following a case of polio that was confirmed in Rockland County in New York state on July 21, many people are scrambling to learn more about the severe disease and if they're protected against it. O… [+5358 chars]

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