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Pennsylvania Measles Outbreak Passes 1,500 Cases as US Tally Hits Highest Level Since 1991

Pennsylvania’s measles outbreak has passed 1,500 confirmed cases, state health officials confirmed on Monday 9 November 2026, as the disease keeps spreading across 45 of the state’s 67 counties. The milestone makes Pennsylvania by far the hardest-hit state in a year that has already produced more measles cases across the United States than any year since 1991. The Pennsylvania Department…