The Pennsylvania Department of Health announced 1,433 confirmed measles cases across 44 counties in Pennsylvania for 2026, an update issued on a Friday. In Mercer County, the count climbed from 24 to 29 over the course of a week.

The same report put Ohio's total at 297 cases, describing the northeast corner of the state as the center of the outbreak. Trumbull County recorded 11 confirmed cases, up from 10. Geauga County has logged 54 cases since the outbreak began, the most among affected Ohio counties, with Ashtabula County second at 47. The article states that counties bordering Trumbull have the highest rates among the 24 Ohio counties where measles has been detected.

Akron Children's Hospital issued a notice on October 23 about a possible exposure at its main campus in Akron. The notice described a window on Tuesday, October 20, from 8:03 to 10:03 a.m. on the yellow elevators in the main hospital building. Since symptoms generally appear seven to 21 days after exposure, people who may have been affected were told to watch for symptoms through November 10, 2026.

Pennsylvania health center staff have administered more than 6,800 MMR vaccinations at 237 pop-up clinics in affected communities since the outbreak began in late April. Providers in that state typically give about 25,000 MMR doses in a month; more than 56,000 were given in September and more than 53,000 during the first four weeks of October.

Health officials say full vaccination remains the best protection. Two MMR doses provide 97% lifetime protection, according to the article. The health department also recommends an early dose for infants aged 6 through 11 months who live in or travel to counties flagged for sustained community transmission, noting that this dose does not replace the two routine doses.