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News
Pennsylvania's measles outbreak has now killed three people, with a 40-year-old unvaccinated woman in Jefferson County becoming the latest fatality. The state leads the nation with 676 confirmed cases in 2026, and the outbreak's epicenter remains Lancaster County. The deaths are sparking debate over how measles fatalities are officially counted at the federal level.
Pennsylvania's measles outbreak has turned deadly for a third time. A 40-year-old unvaccinated woman in Jefferson County — who had underlying conditions including COPD and asthma — died Saturday after contact with a lab-confirmed measles case. The Jefferson County Coroner's Office confirmed the death and is working with the state health department on its review.
Pennsylvania leads the U.S. in 2026 measles cases, with the outbreak centered in Lancaster County. The state's two earlier measles-related deaths involved infants in that county, though those cases have been mired in controversy — with disputes between coroners, infectious disease experts, and federal officials over the cause of death. Adding to the confusion, the CDC has yet to officially record any of Pennsylvania's measles deaths in national data, as CDC Director Erica Schwartz works with epidemiologists to develop a standardized definition for a measles death.
By the Numbers:
Why it matters: Measles was largely eliminated in the U.S. for decades, but falling vaccination rates are fueling a dangerous resurgence. With federal and local officials at odds over how to count deaths, the public health response risks being undermined at a critical moment.
