REPORT / 28Health
US faces possible loss of measles elimination status as international panel plans April 2026 review
International health officials plan to evaluate in April 2026 whether measles has spread continuously in the US for at least 12 months. Experts say declining vaccination coverage has left communities vulnerable to sustained outbreaks.
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International health authorities plan to meet in April 2026 to evaluate whether the United States has lost its measles elimination status, a designation that depends on whether there has been uninterrupted transmission for at least 12 months.
The review follows a prolonged outbreak timeline that public health experts say reflects gaps in vaccination coverage, as outbreaks spread across multiple states and strain contact-tracing resources.
- What ‘elimination’ means: No continuous domestic transmission for 12 months.
- Next milestone: A PAHO meeting scheduled for April 13, 2026 to review the US situation.
- Public health focus: Raising vaccination rates and containing ongoing outbreaks.