U.S. measles cases more than double what they were last year as outbreak spreads
The United States is experiencing a significant measles resurgence, with over 4,580 cases reported since October 2025. Pennsylvania is particularly affected, with health officials urging vaccination as the primary defense against the outbreak.
Why it matters
The surge highlights public health challenges regarding vaccination rates and the potential for preventable diseases to cause significant mortality and hospitalizations.
The U.S. is grappling with its worst resurgence of measles in decades, with cases particularly high in the state of Pennsylvania.
New data from the U.S. Centers for Disease Control and Prevention shows there have been more than 4,580 measles cases across the U.S. since Oct. 22, which is more than double the number for the whole of 2025.
The vaccination status of 96% of those who contracted measles in 2026 was "Unvaccinated or Unknown," according to data from the CDC.
Living Better Here's what to know if you're unsure about your measles immunity status A measles outbreak across Pennsylvania has grown as officials urge residents to get fully vaccinated against the disease.
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