The number of measles cases climbed above 2,000 in the United States in 2025, the Centers for Disease Control and Prevention said on Dec. 31.
As of Dec. 30, state and local officials reported 2,065 confirmed measles cases to the CDC, the agency said in an update on its website.
Additional cases listed as probable are not included in the tally.
Cases of measles had not surpassed 2,000 in the United States since 1992, when 2,126 cases were recorded.
The peak between 1992 and 2025 was 1,274 in 2019, fueled by outbreaks in New York state. The CDC defines an outbreak as three or more related cases.
Forty-nine outbreaks resulted in most of the cases in 2025. Texas recorded more than 800 cases. The largest outbreak there concluded in August, according to state officials….