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Getting the latest healthcare news for you
Two Pennsylvania residents have died from measles in 2026 — the first deaths in the state in 35 years — as the U.S. hits its worst measles year since 1991. With 2,777 confirmed cases and 36 outbreaks so far, declining vaccination rates are driving the crisis. The MMR vaccine remains the only proven protection, offering 97% effectiveness with two doses.
Two Pennsylvania residents have died from measles in 2026 — the first measles deaths in the state in 35 years — as the U.S. records its worst measles year since 1991. The CDC has confirmed 2,777 cases nationwide as of August 20, with 36 new outbreaks reported this year. Studies from South Carolina and Utah outbreaks documented serious complications among hospitalized patients, including encephalitis, sepsis, pneumonia, and hypoxemia — with children and the unvaccinated bearing the heaviest burden.
The root cause is clear: vaccination rates have fallen. Coverage among U.S. kindergartners dropped from 95.2% in 2019–2020 to 92.7% in 2023–2024 — below the 95% threshold needed for herd immunity. Vaccine skepticism, fueled in part by long-debunked claims linking the MMR vaccine to autism, has left communities vulnerable. Among confirmed cases in both 2025 and 2026, 93% of patients were unvaccinated or had unknown vaccination status.
By the Numbers:
Why it matters: Measles was eliminated in the U.S. in 2000, but falling vaccination rates have reversed decades of progress. With no specific treatment available, prevention through vaccination is the only reliable tool — and the window to protect vulnerable populations, including infants and the immunocompromised, is narrowing fast.
