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Story summary
- Pennsylvania Department of Health reported 903 measles cases and four deaths statewide.
- Lancaster County experienced the largest outbreak with 363 cases.
- 176 people have been hospitalized across Pennsylvania.
- State officials administered over 7,900 MMR vaccine doses, including 5,300 at pop-up clinics.
- Kindergarten MMR coverage fell to 92.4% in 2025-2026, down from 95.2% in 2019-2020.