NYT > U.S. News Pennsylvania Measles Outbreak Leads to an Increase in Vaccinations Par : Pooja Salhotra · Mark Bonamo and Kevin Williams 20 septembre 2026 à 05:03 As the outbreak grows to more than 700 confirmed cases, the largest in the country, some people remain opposed to vaccines and others are rushing to get the shots. © Rachel Wisniewski for The New York TimesLancaster County is at the center of a measles outbreak that has sickened hundreds and killed four people in Pennsylvania.