Health

U.S. measles cases more than double what they were last year as outbreak spreads

Pennsylvania is the worst hit state, with at least 1,338 cases of measles confirmed in 44 counties so far this year, according to the Pennsylvania Department of Health.

✦ Extractive summary — built from the sources' own reporting•From 1 source•1 min read•Updated October 25, 2026, 8:35 PM UTC
Key points
  • Pennsylvania is the worst hit state, with at least 1,338 cases of measles confirmed in 44 counties so far this year, according to the Pennsylvania Department of Health.

Pennsylvania is the worst hit state, with at least 1,338 cases of measles confirmed in 44 counties so far this year, according to the Pennsylvania Department of Health.

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