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Friday, October 16, 2026

4,410 Measles Cases

CDC:
As of October 15, 2026, 4,410 confirmed* measles cases were reported in the United States in 2026. Among these, 4,392 measles cases were reported by 47 jurisdictions: Alabama, Alaska, Arizona, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, New Jersey, New Mexico, New York City, New York State, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming. A total of 18 measles cases were reported among international visitors to the United States.

There have been 42 new outbreaks** reported in 2026, and 96% of confirmed cases (4,228 of 4,410) are outbreak-associated (2,844 from outbreaks starting in 2026 and 1,384 from outbreaks that started in 2025).

For the full year of 2025, a total of 2,289 confirmed* measles cases were reported in the United States.