The Facilities for Illness Management and Prevention (CDC) confirmed 53 new US measles circumstances this week, bringing the whole for the yr to 2,371 circumstances.
All however 16 of the circumstances have been domestically acquired in 45 US jurisdictions, with the remainder tied to worldwide journey, the CDC mentioned in its weekly replace. There have been 37 new measles outbreaks reported this yr, with 94% of circumstances related to outbreaks (outlined as three or extra circumstances).
The variety of US measles circumstances as of July 30 has already surpassed the two,289 reported for all of 2025. Each figures symbolize the very best annual variety of circumstances within the nation since 1991. The USA was declared measles-free in 2000 however seems more likely to lose its measles elimination standing later this yr, when officers with the Pan American Well being Group overview transmission knowledge.
Of the confirmed measles circumstances, 20% contain youngsters beneath age 5 and 49% contain youngsters aged 5 to 19. Seven p.c of sufferers have been hospitalized, in contrast with 11% in 2025, and none have died. The overwhelming majority (93%) of US measles sufferers are both unvaccinated or have unknown vaccine standing.
31 extra circumstances in Pennsylvania
Among the many present measles hotspots is Pennsylvania, which has reported 31 new circumstances over the previous seven days and now has 167 circumstances for the yr, in accordance with the Pennsylvania Division of Well being. Officers in neighboring Ohio yesterday confirmed 4 new circumstances in unvaccinated people in Ashtabula and Tuscarawas counties. It’s Ohio’s third measles outbreak this yr.
“It’s unlucky that these outbreaks have develop into extra frequent in Ohio over the previous few years, as a result of this illness is preventable,” Ohio Division of Well being Director Bruce Vanderhoff, MD, MBA, mentioned in a press launch. “This serves to emphasise the significance of being absolutely vaccinated.”
Utah, the state with the most important energetic measles outbreak (514 circumstances in 2026), didn’t report any measles circumstances over the previous week. Neighboring Arizona added one case this week, bringing its 2026 complete to 120 circumstances.
Washington state added seven new circumstances this week, bringing its complete for the yr to 53 circumstances.
