US measles cases more than double last year's total as Pennsylvania outbreak spreads
At least 1,338 cases, more than 250 hospitalizations and five deaths in Pennsylvania this year
The U.S. is grappling with its worst resurgence of measles in decades, with more than 4,580 cases recorded so far in 2026, more than double the number for all of 2025, according to new data from the Centers for Disease Control and Prevention. Pennsylvania is the hardest hit state, with at least 1,338 confirmed cases across 44 counties, more than 250 hospitalizations and five deaths.