The CDC reported 5,182 US measles cases in the highest annual count since 1991
U.S. measles cases reached 5,182 as of Nov. 5, the highest total since 1991, according to the CDC. Cases rose 6.8% in the week and have already more than doubled the 2025 total, Contagion Live reported. Bloomberg said the surge threatens the country’s measles-elimination status later this month.
More context
US measles cases reached 5,182 as of November 5, the highest annual count since 1991, according to the Centers for Disease Control and Prevention (CDC). The total rose by 330 cases, or 6.8%, from the previous week and is more than double the 2,289 cases reported in all of 2025. Of this year’s cases, 5,164 were reported by 47 jurisdictions; the other 18 involved international visitors. The CDC said 4,993 cases—96% of the total—were outbreak-associated, and reported 43 new outbreaks in 2026. Bloomberg reported that the CDC recognized four measles-associated deaths this year, while Pennsylvania’s health department confirmed six and New York and Wisconsin each reported one. Bloomberg also said the country faces losing its measles elimination status later this month.
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Reporting
- Bloomberg — US Measles Cases Surpass 5,000, Threatening Elimination Status - Bloomberg
- contagionlive.com — Measles Update: November 6, 2026 | Contagion Live
Verifier’s note
Contagion Live reports 5,182 confirmed U.S. measles cases as of November 5 and lists the reporting jurisdictions. Bloomberg independently reports that the CDC confirmed 5,182 infections, supporting the claim that cases surpassed 5,000.