US measles cases surpass 2025 record
Analysis based on 52 articles · First reported Jul 24, 2026 · Last updated Jul 25, 2026
The resurgence of measles in the U.S. may negatively impact healthcare systems and vaccine manufacturers due to increased public health spending and potential liability concerns. However, the event is unlikely to cause significant market-wide disruption.
The number of measles cases in the U.S. has surpassed the record-breaking tally for all of 2025, with five more months of 2026 still to come. The United States — Centers for Disease Control and Prevention logged 2,318 cases as of July 24, 2026, exceeding the 2,289 cases in 2025. Major outbreaks in United States — North Carolina, United States — Utah, and United States — Arizona have sickened hundreds, with smaller clusters in other states. In November, international health officials will meet to determine if the United States and Mexico have lost their measles-free status. Vaccination rates have fallen below the 95% threshold needed to prevent outbreaks, with national MMR coverage at 92.5% among kindergartners in 2024-25. Experts acknowledge official counts are undercounts; modeling suggests the United States — Utah-United States — Arizona outbreak may be 3-4 times larger, and the 2025 United States — Texas outbreak nearly twice the known 762 cases. Researchers from University of Utah, University of Colorado Boulder, and University of Pittsburgh are analyzing the outbreaks.
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