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Pittsburgh Measles Outbreak Tests a City Built on Vaccine History
Key Takeaways
- Pennsylvania confirmed 693 measles cases across 38 counties as of Sept. 14, 2026, with 133 hospitalizations and four deaths among unvaccinated residents.
- The state recorded only 16 measles cases in all of 2025, underscoring the scale of the 2026 surge.
- Allegheny County's first outbreak-linked case came in August 2026, with an exposure warning at UPMC Children's Hospital's emergency department and two cases diagnosed Aug. 27.
- Pittsburgh kindergarten vaccination coverage has fallen below the threshold needed to prevent sustained measles transmission.
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DT Editorial Team··via medicalxpress.com