US Measles Cases Top 4,500, More Than Doubling 2025 Total
Updated CDC data reveals US measles cases have doubled compared to last year, marking the worst year for infections.
The number of confirmed measles cases in the United States has surpassed 4,500, officially more than doubling the total recorded across the country in all of 2025. This was reported by news outlet The Hill and Chinese news agency Xinhua, citing updated data from the Centers for Disease Control and Prevention (CDC).
According to the reports, the sharp surge in infections makes this the worst year for measles spread in the country in recent history. Public health authorities continue to monitor outbreak clusters in an effort to contain further viral transmission.
Further details regarding the full geographic distribution of cases by state have not yet been released.