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  "path": "/news/2026-04-declining-vaccination-allegheny-county-kindergarten.html",
  "publishedAt": "2026-04-13T11:20:01.000Z",
  "site": "https://medicalxpress.com",
  "textContent": "As the risk of measles remains an ongoing concern, herd immunity in Allegheny County, Pennsylvania, is already slipping. According to data obtained via The Washington Post in January 2026, 1 in 3 Allegheny County kindergartners were in a classroom too far below adequate vaccination coverage to stop a measles outbreak during the 2023–24 school year.",
  "title": "Declining vaccination rates in Allegheny County—1 in 3 kindergarten classrooms lack herd immunity for measles"
}