At a Glance
- 2,012 confirmed measles cases in the U.S. in 2025, the highest since 2000
- 3 deaths and 227 hospitalizations linked to the outbreaks
- 43 states affected with 50 separate outbreaks, mostly among unvaccinated children
- Why it matters: The surge threatens to end the U.S.’s measles-free status and signals a national public-health crisis
Measles cases in the United States have surged to a 25-year high, with 2,012 confirmed infections reported by the CDC. The outbreak spans 43 states and includes three deaths, raising alarms that the country could lose its measles-free certification next month.
Current State of the Outbreak
The largest outbreak began in early January in parts of Western Texas, but cases have spread nationwide. As of December 23, 2025, the tally is the highest since measles was locally eliminated in 2000, surpassing the previous modern high of 1,274 cases in 2019. About two-thirds of reported cases are among children under 18, and 93% involved people who were unvaccinated or had an unknown vaccination status.
- 2,012 total cases (2025)
- 3 deaths
- 227 hospitalizations
- 50 separate outbreaks
- 43 states affected
Impact on Vaccination and Public Health
The U.S. would likely lose its official measles-free status as early as next month, and the World Health Organization may declare measles has officially returned. The return of measles has been fueled by waning vaccination rates, and the overall vaccination rate for measles remains above 90% but is declining, insufficient for herd immunity in vulnerable populations.
| Year | Confirmed Cases |
|---|---|
| 2019 | 1,274 |
| 2025 | 2,012 |
| 1992 | >2,000 |
The data show that 2025’s case count surpasses the 2019 high and is the most since 1992. Experts say the numbers are likely an underestimate, and the situation could worsen if vaccination coverage continues to slip.
Key Takeaways
- The U.S. has recorded 2,012 measles cases, the highest in a quarter-century.
- Three deaths and 227 hospitalizations highlight the outbreak’s severity.
- The spread across 43 states and 50 outbreaks signals a national public-health emergency.
The surge in measles cases underscores the urgent need to maintain high vaccination coverage and address gaps that could allow the disease to return.
