US Measles Cases Hit 35-Year High at 2,318 Infections in 2026

The US has recorded 2,318 measles cases in 2026, making it the worst outbreak year since 1991.

With 2,318 confirmed infections, 2026 has become the worst year for measles in the United States since 1991 — surpassing a record that itself had just been set in 2025. The case count marks a 35-year high and reflects a sustained rise in measles activity across the country amid declining vaccination rates. At the local level, outbreaks are appearing in specific communities. In Ashtabula County, Ohio, two adults have been confirmed infected, with health officials also reporting possible exposures in neighboring Trumbull County and at a large gathering in Bloomfield Township. Local Fox affiliate and Cleveland 19 News both confirmed the Ashtabula cases and noted active efforts to identify and notify people who may have been exposed. Measles was declared eliminated in the US in 2000, meaning it no longer spread continuously within the country. Since then, cases have been linked to international travel and pockets of unvaccinated people. The MMR (measles, mumps, rubella) vaccine is roughly 97% effective after two doses, but vaccination rates in some communities have slipped in recent years, creating conditions for sustained local transmission.

Why it matters

A resurgence of a vaccine-preventable disease to levels not seen in 35 years signals a meaningful erosion of the herd immunity that once kept measles at bay, potentially putting unvaccinated children and immunocompromised individuals at serious risk. If the trend continues, the US could lose its measles-eliminated status.

What's next

Health officials in Ashtabula and Trumbull Counties, Ohio, are actively working to identify additional exposures and contain local spread, and national case counts will continue to be updated as investigations proceed.

Key facts

• 2,318 measles cases recorded in the US in 2026, the highest count since 1991
• 2026 has surpassed 2025, which itself had held the recent record for infections
• Two adult measles cases confirmed in Ashtabula County, Ohio
• Possible exposures also identified in Trumbull County and at a large gathering in Bloomfield Township, Ohio
• Measles was declared eliminated in the US in 2000; current surge is linked to declining vaccination rates
• The MMR vaccine is approximately 97% effective after two doses

Bias & framing notes

The Guardian provided the most specific national figure (2,318 cases) and the historical framing (worst year since 1991). The Google/Fox 8 cluster focused on localized Ohio outbreak reporting without national context. The HeadTopics source was vague, offering no case numbers and relying on the visual hook of a map. No source provided significant government or CDC sourcing directly, and the Ohio local coverage did not quantify broader state or national figures.

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