Pennsylvania Measles Outbreak Claims Sixth Life as Cases Top 1,460
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Pennsylvania reported its sixth measles-linked death as confirmed cases climbed to 1,467 across 44 counties, making it the worst measles outbreak in the United States in decades.
Pennsylvania's measles outbreak — the largest in the United States in a generation — grew more deadly on 4–5 November 2026 when health officials confirmed a sixth death linked to the disease, bringing the state's confirmed case total to 1,467 across 44 counties. The outbreak includes 283 hospitalizations, with unvaccinated individuals accounting for more than 99 percent of cases. The outbreak began in late April 2026 and has spread steadily through communities with low vaccination rates. State health centre staff have administered more than 6,800 MMR vaccinations at 238 pop-up clinics since the outbreak began. Pennsylvania accounts for the largest share of the roughly 4,852 measles cases the US Centers for Disease Control and Prevention recorded nationally as of 29 October. Health officials urged residents to check their vaccination status and visit local clinics, warning that measles can spread rapidly in under-immunised populations. The scale of deaths and the geographic spread across nearly every corner of the state have made this the dominant domestic public health story of the week.
