In its latest update, the CDC confirmed 23 additional measles cases, increasing the national total to 1,431 infections for 2025. This is the most cases in a year since the US achieved measles elimination status in 2000.
There have been 35 outbreaks in 2025, more than twice the number of outbreaks recorded in 2024. This year, 92% of individuals infected were not vaccinated or had an unknown vaccination status.
