According to a new count, there have been more measles cases reported in the U.S. this year than in any other year since the disease was declared eliminated in the country a quarter-century ago.
Surpassing the previous record set in 2019, at least 1,277 cases have been reported as of Monday, despite this year being only halfway over, according to the Johns Hopkins Bloomberg School of Public Health’s U.S. Measles Tracker.
Researchers attribute the case surge to “long-standing gaps in measles vaccine coverage,” with about 92% of this year’s cases occurring among those who are unvaccinated or whose vaccination status is unknown.
Vaccine rates have been declining in recent years, posing a heightened risk of localized outbreaks due to falling coverage among U.S. kindergarteners.
Health officials note that approximately 88% of all confirmed cases this year have been associated with known outbreaks, indicating a concerning trend.

The U.S. achieved measles elimination in 2000, a significant milestone attributed to a highly effective vaccination program and improved measles control in the Americas region.
Health and Human Services Secretary Robert F. Kennedy Jr., without a formal medical background, has expressed inconsistent and tepid support for the MMR vaccine, promoting untested treatments for the disease.

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In Texas, the majority of cases this year occurred, resulting in the unfortunate deaths of two unvaccinated school-aged children in outbreak areas.
Despite the growing number of cases in 2025, measles is still considered eliminated in the U.S., distinguishing it from eradication.
Robert F. Kennedy Jr.’s office did not respond immediately to JS’s request for comment.