US records 2,318 measles cases, already surpassing 2025 total
The United States has recorded 2,318 measles cases in 2026, exceeding the previous year's record of 2,289 cases with five months remaining. Scientists warn that declining vaccination rates are leaving vulnerable groups, particularly young children, more exposed to the disease.

Briefing Summary
AI-generatedThe United States has recorded 2,318 measles cases in 2026, exceeding the previous year's record of 2,289 cases with five months remaining. Scientists warn that declining vaccination rates are leaving vulnerable groups, particularly young children, more exposed to the disease. This resurgence marks the country's worst year for measles outbreaks since 1991, with significant outbreaks occurring in states like South Carolina, Utah, and Arizona. Experts note that reported figures are likely an underestimate, as they depend on individuals seeking testing and sharing information. A 95 percent community vaccination rate is necessary to prevent such outbreaks, but national vaccination rates for kindergartners dropped to 92.5 percent in the 2024-2025 school year.
Article analysis
Model · rule-basedKey claims
5 extractedMeasles cases reported are an underestimate of actual occurrences.
The US eliminated local measles spread in 2000.
A 95% community vaccination rate is needed to prevent measles outbreaks.
National vaccination rates for kindergartners dropped to 92.5% in the 2024-2025 school year.
US recorded 2,318 measles cases in 2026, surpassing the 2025 total with five months remaining.