The CDC has reported measles outbreaks in 15 states with over 800 confirmed cases in 2026, the highest number since 2019. Public health officials attribute the surge to declining MMR vaccination rates that have fallen below the 95% herd immunity threshold in many communities.
The largest outbreaks are centered in Texas, Ohio, Florida, and Idaho, all states where vaccination exemptions have been expanded in recent years. Several outbreaks are associated with schools and childcare centers where vaccination rates dropped below 85%.
Three children have been hospitalized with serious complications including pneumonia and encephalitis. No deaths have been reported, but health officials warn that measles kills approximately 1-2 per 1,000 infected children and can cause permanent brain damage.
The CDC has deployed rapid response teams to affected areas and is working with state health departments to establish emergency vaccination clinics. Catch-up vaccination campaigns are targeting communities with the lowest coverage rates.
Misinformation on social media continues to fuel vaccine hesitancy. The Surgeon General has called for platforms to label anti-vaccine content and promote authoritative health information, though the effectiveness of such measures remains debated.
