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US Loses Measles Elimination Status Amidst Outbreak
14 Nov
Summary
- US lost measles elimination status after over 5,400 cases this year.
- Pennsylvania reports over 1,500 cases and seven deaths.
- Reaching 95% vaccination rate is key to regaining status.

The United States has lost its measles elimination status, a significant public health setback. This comes as the nation recorded over 5,400 measles cases so far in 2026, more than double the previous year's total.
The Pan American Health Organization confirmed the decision, noting the U.S. has not met the criteria of no locally transmitted infections for 12 months. Measles cases have been confirmed in 45 states and Washington, D.C.
Pennsylvania leads with over 1,500 cases and seven deaths this year. New York and Wisconsin have also reported fatalities. The Centers for Disease Control and Prevention data indicates over 590 hospitalizations and at least six deaths linked to measles in 2026.
To regain elimination status, the U.S. must achieve and maintain vaccination rates of 95% or higher, implement sensitive surveillance systems, and ensure rapid response to outbreaks. Battling misinformation and ramping up vaccination campaigns are considered crucial steps.
Measles elimination status was first achieved by the U.S. in 2000 and maintained for over 25 years. Declining childhood vaccination rates in recent years have contributed to the current resurgence of the disease.