Dossier
2,318 cases
Coverage of 2,318 cases in the Nexus archive.
- There are already more US measles cases this year than in all of 2025
The U.S. has recorded 2,318 measles cases in 2026, surpassing the 2025 total of 2,289 cases, marking the worst outbreak since 1991. Major outbreaks in South Carolina, Utah, and Arizona have contributed to the surge, with experts warning of undercounted cases due to low vaccination rates and incomplete reporting.