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Measles Surges: US at Risk of Losing Elimination Status
27 Apr
Summary
- US measles cases are soaring, potentially jeopardizing elimination status.
- Declining vaccination rates are the primary driver of the current outbreak.
- Over 1,700 confirmed cases have been reported across more than 30 jurisdictions.
Measles infections in the United States are on a trajectory to surpass previous annual records, with over 1,792 confirmed cases and 22 new outbreaks reported to date in 2026. This alarming rise has been documented in more than 30 jurisdictions nationwide.
The ongoing situation poses a significant threat to the U.S.'s measles elimination status, which has been maintained since 2000. A critical review of this status is scheduled for November 2026.
The surge is primarily attributed to a noticeable decrease in vaccination rates and an increase in vaccination exemptions. MMR vaccine coverage among children has fallen from 95.2% in the 2019-2020 school year to 92.5% in the 2024-2025 school year.
The MMR vaccine is highly effective and offers long-lasting protection against measles. Data indicates that approximately 92% of reported cases involved individuals who were unvaccinated or whose vaccination status was unknown.
Experts warn that even a minor reduction in childhood vaccination rates can lead to a substantial increase in measles cases, hospitalizations, and preventable deaths each year. Measles is extremely contagious, with a high probability of infection for unprotected individuals in close proximity to a contagious person.
