The U.S. Centers for Disease Control and Prevention updated its measles surveillance data on January 23, 2026, reporting that 416 confirmed measles cases have been recorded in the United States in 2026 to date.
The CDC said the cases involve both U.S. jurisdictions and a small number of international visitors. The agency’s update emphasizes that most confirmed cases are outbreak-associated—and specifically tied to outbreaks that began in 2025—underscoring how major outbreaks can persist and spill into the following calendar year.
According to the CDC’s case breakdown, 413 of the confirmed cases were reported by 14 jurisdictions: Arizona, California, Florida, Georgia, Idaho, Kentucky, Minnesota, North Carolina, Ohio, Oregon, South Carolina, Utah, Virginia, and Washington. An additional three cases were reported among international visitors.
While the update notes zero newly reported outbreaks in 2026 at the time of the report, it also indicates that the overwhelming share of cases remain connected to earlier outbreak activity. That pattern matters for public health response because it means containment efforts must remain active even after the calendar turns, particularly around exposure tracing, vaccination outreach, and rapid identification of new clusters.
- CDC update date: January 23, 2026
- Confirmed U.S. measles cases in 2026 so far: 416 (as of January 22, 2026)
- Jurisdictions reporting most cases: 14 listed by CDC
- CDC notes most cases are outbreak-associated and linked to outbreaks that started in 2025
The CDC continues to publish community tools and guidance for outbreak response, including materials for schools and local health systems. Public health officials typically encourage vaccination and prompt clinical evaluation of suspected cases, especially when symptoms follow potential exposure.