There have been 1,024 cases of measles confirmed in the U.S. in 2025, reported the Centers for Disease Control and Prevention.
The CDC case data was last updated Thursday. By comparison, the country had only 16 outbreaks of measles in 2024.
Of the outbreaks this year, three people have died. In Texas, with 718 confirmed cases of measles this year, two children have died, one in February and another in April, according to the Texas Department of State Health Services. In New Mexico, an adult caught up in the same outbreak was confirmed to have had measles after his death in March.
Both children and the patient in New Mexico were unvaccinated. The vast majority of the 2025 cases, 96%, have affected people who are unvaccinated or whose vaccination status is not known, the CDC said. Only 1% of cases involved a patient with one dose of the measles, mumps and rubella vaccine, and only 2% of cases involved a patient with two doses.
In addition to Texas, which has had most of the country’s measles cases this year, others have been in Alaska, Arkansas, California, Colorado, Florida, Georgia, Hawaii, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maryland, Michigan, Minnesota, Missouri, Montana, New Jersey, New Mexico, New York, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, Tennessee, Vermont, Virginia and Washington.
While the overall number of cases has increased over time, the rate of spread has gone down significantly in recent weeks. The national spread of measles peaked in March and leveled off this month.
