When was the last recorded case of polio in the U.S.? The last case of naturally occurring (wild) polio in the U.S. was in 1979. Cases since then have either been contracted outside of the U.S. or have been from the ...Read more
When was the last recorded case of polio in the U.S.?
The last case of naturally occurring (wild) polio in the U.S. was in 1979. Cases since then have either been contracted outside of the U.S. or have been from the live polio vaccine (vaccine-derived), which is no longer given in the U.S. The last case of vaccine-derived polio in the U.S. was reported in 2022.
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