Key facts
- The CDC said 2,132 cases were in people aged 20 and older, 2,104 in those aged 5 to 19 and 908 in children under 5.
- The CDC said 4,993 cases, 96% of infections, were linked to outbreaks, with 43 outbreaks reported in 2026.
- The CDC reported four measles-associated deaths in 2026, compared with three during all of 2025.
- The CDC said 562 hospitalizations linked to measles in 2026 represented 11% of all reported cases.
The US Centers for Disease Control and Prevention reported 5,182 measles cases in the United States for 2026 as of November 5, an increase of 330 from its previous update, the agency said on November 6.
The CDC said 562 hospitalizations linked to measles in 2026 represented 11% of all reported cases. By age, people 20 and older accounted for 2,132 cases, those aged 5 to 19 for 2,104 cases and children under 5 for 908 cases.
The agency said 96% of 2026 infections were among people who were unvaccinated or whose vaccination status was unknown. It reported 4,993 cases, or 96% of infections, linked to outbreaks, with 43 outbreaks reported in 2026.
The CDC reported four measles-associated deaths in 2026, compared with three deaths reported during all of 2025.