Pennsylvania records its first measles deaths in 35 years

The Pennsylvania Department of Health confirmed two measles-associated deaths on 25 August. Both people were unvaccinated residents of Lancaster County. They are the first measles deaths in the state in 35 years and the first measles deaths reported in the United States in 2026. Health secretary Dr Debra Bogen said families were facing "unimaginable loss" and that many residents no longer treat measles as a disease that can kill.

The department released almost no identifying detail, citing privacy. That vacuum filled quickly. Lancaster County coroner Dr Stephen Diamantoni told the Philadelphia Inquirer that one death was a newborn who died shortly after birth from a traumatic laceration of the spleen. The infant had tested positive for measles on lung tissue after death and had contracted the virus before birth. Forensic pathologist Dr Wayne Ross, Diamantoni said, did not treat measles as a contributing cause. FactCheck.org set that dispute out on 29 August: the state called the deaths measles-associated; the coroner separated at least one of them from the virus on the autopsy form.

The outbreak underneath the argument

Pennsylvania has logged 393 confirmed measles cases in 2026 across 28 counties, the third-highest state tally in the country this year. Lancaster County alone has 185. About a third of the statewide cases are in children. Seventy people have been hospitalised in the Lancaster cluster. Public-health workers say the true count is higher because large Amish and conservative Mennonite communities in the county often stay outside routine clinics.

Kindergarten MMR coverage in Lancaster County was 87.6 percent in the last school year. Statewide coverage has fallen from 96.7 percent in 2017 to 92.7 percent in 2026, according to CDC compilations cited by Ars Technica. Two doses of MMR give about 97 percent protection. Measles was declared eliminated in the United States in 2000. Case counts in 2026 have already passed every year since that declaration.

Last year the country recorded three measles deaths: two unvaccinated school-age children in Texas and one unvaccinated adult in New Mexico. Before 2025 the last U.S. measles death was in 2015. The Pennsylvania announcement therefore sits inside a national slide, not a one-county accident.

What "measles-associated" does and does not settle

The phrase is a surveillance category. It lets a health department record a death in a confirmed measles case even when another immediate mechanism, such as pneumonia or, here, a ruptured spleen, appears on the death certificate. Coroners write cause. Epidemiologists write association. Both documents can be true and still fight in public.

Bogen's point does not depend on the infant autopsy. Measles kills through pneumonia, encephalitis and, in pregnancy, by infecting the fetus. An unvaccinated county with 185 confirmed cases will produce severe outcomes. The political fight that followed the announcement, between state officials and local critics of the label, does not change the coverage rate in Lancaster kindergartens or the 393 confirmed infections already on the books.