Updated
Updated · abcnews.com · Sep 28
Pennsylvania Measles Cases Top 900 as 176 Hospitalizations and 4 Deaths Mount
Updated
Updated · abcnews.com · Sep 28

Pennsylvania Measles Cases Top 900 as 176 Hospitalizations and 4 Deaths Mount

3 articles · Updated · abcnews.com · Sep 28

Summary

  • Pennsylvania added 13 confirmed measles infections since Friday, pushing its 2026 total to 903 cases across 39 of 67 counties.
  • At least 176 people have been hospitalized and four measles-associated deaths reported, including two unvaccinated adults and two infants too young for the MMR vaccine.
  • Lancaster County leads the outbreak with 363 cases, followed by Mifflin County with 105, while 11 counties show community transmission with no known travel-linked source.
  • Fewer than 1% of cases—just four—are in fully vaccinated people, and the state has administered more than 8,300 MMR doses this year, with uptake peaking in August and September.
  • Nationally, U.S. measles cases have surpassed 3,600 in 45 states and Washington, D.C., as kindergarten MMR coverage has slipped to 92.4% from 95.2% before the pandemic.

Insights

With 903 cases across 39 counties, where are Pennsylvania’s immunity gaps still allowing measles to spread locally?
If fewer than 1% of cases were fully vaccinated, what does Pennsylvania’s outbreak reveal about who is still most at risk?