Ohio measles cases near 300 in 2026 — almost 600% above all of 2025
Editorial illustration — Press Pass USAMeasles cases in Ohio have climbed to 296 across 24 counties so far in 2026, the Ohio Department of Health reported, a 557% increase over the 45 cases recorded in all of 2025 — and the surge is still accelerating.
The state added 36 new cases in the past week, a 350% jump from the eight new cases reported the week before, according to the health department's summary of infectious diseases dashboard, updated October 22. The latest wave is centered in southern Ohio, where Pike County reported 20 new cases in a single week during what is now the state's third measles outbreak of 2026.
Pike County's total reached 22 cases, up from a single confirmed case earlier in October, the Pike County General Health District said. The district said it has completed contact tracing for the new cases, notifying people who may have been exposed and giving them guidance, and it is tracking two additional suspected cases. Health officials did not release the ages, vaccination status or likely exposure locations of the newly confirmed patients.
The climb has been steady all month. Ohio reported 206 cases in 20 counties on October 1, 228 cases in 21 counties on October 8, 252 cases in 23 counties on October 15 and 260 cases in 24 counties on October 22. The vast majority of cases statewide are among unvaccinated individuals, according to the health department.
Other counties hit hard this year include Geauga with 54 cases, Ashtabula with 47 and Wayne with 45, while Medina County reported 27 cases and Van Wert County joined the list in the past week. Akron Children's Hospital also recently announced a possible measles exposure on October 20 at its main hospital building.
The Ohio surge mirrors a national one. Data released October 23 by Johns Hopkins University showed 4,730 measles cases reported nationwide so far this year, surpassing the 2,286 infections recorded during all of 2025 and marking the highest annual total since 1991.
Health officials stress that measles is highly contagious and spreads through the air, and that two doses of the measles, mumps and rubella vaccine are about 97% effective at preventing illness. The Pike County health district has urged anyone with measles to stay isolated through the fourth day after a rash appears, and local school districts in the region have reminded families to check their children's vaccination records.
Sources: Cincinnati Enquirer / Columbus Dispatch, “Measles cases in Ohio almost 600% higher in 2026 compared to 2025” (Oct 30, 2026), citing the Ohio Department of Health summary of infectious diseases dashboard, updated October 22, 2026; Outbreak News Today, “Ohio measles cases near 300” (Oct 29, 2026); Pike County General Health District statements as reported by the Scioto Valley Guardian (Oct 23, 2026).
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