Pennsylvania has reported its first measles deaths in 35 years: two unvaccinated residents of Lancaster County died during an outbreak that has reached 393 cases statewide, amid the largest national resurgence of the disease since 1991. The deaths are the first in the U.S. in 2026, following three fatalities in 2025.
The outbreak is concentrated in Lancaster County, home to a large Amish population with lower vaccination rates. State health officials confirmed 393 cases across 28 counties, with 86 new diagnoses in the last week and 70 hospitalizations. Nationally, the CDC reports 2,777 confirmed cases in 2026, surpassing last year's total of 2,289, with 94% of patients unvaccinated or of unknown status. The previous annual peak was 9,643 cases in 1991.
Vaccination coverage has fallen: in Lancaster County, MMR coverage dropped from 95.5% in 2017 to 87.6% in 2025. Nationally, kindergarten exemption rates rose to 4.2% in 2026, affecting about 155,000 children. Health Secretary Debra Bogen stressed that the MMR vaccine is safe and offers the best protection.
President Donald Trump recently signed an executive order reducing recommended childhood vaccines, a move backed by Health Secretary Robert F. Kennedy Jr. and criticized by pediatricians. Andrew Racine of the American Academy of Pediatrics called the deaths "heartbreaking" and urged leaders to promote vaccination.