News Summary

• In 1952, its peak year in the U.S., polio outbreaks left nearly 21,000 victims paralyzed and 3,000 dead.
• After the country introduced a vaccine, which became widely available in 1955, cases in theU.S.
• dropped to fewer than 100 per year within a decade.summarize in 5 sentences: Polio is a disease that affects the nervous system and leaves victims unable to walk, talk or breathe normally.
• For more information, go to polio.org.