Pennsylvania health officials confirmed on September 30, 2026, that an unvaccinated Lancaster County resident died after contracting measles, pushing the state’s death toll for the year to five. As reuters.com reported, the ongoing outbreak has driven state cases to 943 across 39 counties, making Pennsylvania the state hardest hit by the nation’s measles resurgence. Every single fatality recorded in the state this year has involved an unvaccinated individual.
Pennsylvania Outbreak Totals Reach 943 Cases Across 39 Counties
The Pennsylvania Department of Health reported 40 new positive cases since September 28, bringing the cumulative total to 943 infections spanning 39 counties, according to state release data cited by pa.gov. Hospitalizations have reached 176 patients. State health officials noted that vaccinated individuals account for only four of the total cases, representing less than 1 percent of all infections. In response to the surge, healthcare providers and state pop-up clinics administered more than 53,000 doses of the measles, mumps, and rubella vaccine in September alone, following a jump to over 49,000 doses in August compared to a baseline of roughly 25,000 doses in a typical month.
Federal and State Disagreements Emerge Over Measles Death Tolls
While state authorities maintain a count of five measles-associated deaths, the Centers for Disease Control and Prevention has confirmed only two measles-related deaths nationwide as of late September, without identifying the specific states. The CDC announced it has transitioned to using mortality data from the National Center for Health Statistics rather than depending strictly on state health department tallies.

Clashes Between Governor Shapiro and HHS Secretary Robert F. Kennedy Jr.
The statistical divide mirrors a political clash between Pennsylvania Governor Josh Shapiro and U.S. Health and Human Services Secretary Robert F. Kennedy Jr. Yahoo.com reported that Kennedy accused the governor of fabricating measles deaths, while Shapiro countered by accusing Kennedy of downplaying the severity of the disease. Despite the friction, HHS stated that the federal agency remains prepared to deploy epidemiologists to support Pennsylvania if formally requested. Reuters previously reported that state officials requested emergency CDC assistance on the condition that federal authorities recognize the measles-associated deaths recorded by the state.
Frequently Asked Questions About the Pennsylvania Measles Outbreak
What criteria does Pennsylvania use to record a measles-associated death?
The state Department of Health records a measles-associated death when an individual with an active measles infection dies and meets a specific set of clinical criteria established by state health authorities.
How effective is the MMR vaccine against preventing measles?
The measles, mumps, and rubella vaccine provides 97% lifetime protection after a person receives the recommended two doses, according to data from the Pennsylvania Department of Health.
How many total measles cases has the United States recorded in 2026?
The CDC recorded 3,659 confirmed measles cases nationwide as of September 24, 2026, with Pennsylvania representing the state hardest hit by the nation’s measles resurgence.
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- Why Vaccinated People Are Still Catching Measles in Pennsylvania (daybreakwire.com)
- Pennsylvania Confirms Fifth Measles Death as State Case Count Hits 943 (archyworldys.com)