About Polio and PPS

Polio is a viral disease; children are especially vulnerable to infection.

Polio can lead to paralysis when it invades motor neurons (1%--2% of infected individuals).

Survivors of polio often recover partial or full function of the affected muscles.

Incidence of new cases peaked in the U.S. in the 1950s.

Introduction of the Salk (1955) and Sabin (1961) vaccines have greatly reduced the incidence of polio.

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Polio is a viral disease; children are especially vulnerable to infection.
Polio can lead to paralysis when it invades motor neurons (1%--2% of infected individuals).
Survivors of polio often recover partial or full function of the affected muscles.
Incidence of new cases peaked in the U.S. in the 1950s.
Introduction of the Salk (1955) and Sabin (1961) vaccines have greatly reduced the incidence of polio.