Pennsylvania measles outbreak grows to 890 cases with 55 new infections: Officials
Key Points:
- Pennsylvania has confirmed 55 new measles cases since Wednesday, bringing the total to 890 cases across 39 counties in 2026, with 173 hospitalizations and four deaths reported.
- The majority of cases are among adults aged 25 to 49, with Lancaster County recording the highest number of cases (359), followed by Mifflin County (102).
- Less than 1% of cases are among fully vaccinated individuals, and the state has administered over 7,900 MMR vaccine doses in 2026, with increased demand for vaccinations amid the outbreak.
- Nationwide, the U.S. has seen over 3,600 measles cases in 2026 across 45 states and D.C., with vaccination rates declining to 92.4% among kindergartners in 2025-2026 compared to 95.2% pre-pandemic.
- Health experts emphasize the importance of vaccination and encourage parents to discuss vaccine concerns with healthcare providers to prevent further outbreaks of this highly contagious but preventable disease.