Ohio officially has a measles outbreak, the state health department announced Wednesday. The outbreak consists of 10 people in Ashtabula County, the Ohio Department of Health (ODH) said in a press release, nine of which are linked to an unvaccinated man reported last week as the state's first measles case of 2025.

Ohio Department of Health officials on Wednesday said the outbreak consists of 10 people. None of those infected with the highly contagious disease were vaccinated.

An Ashtabula County, Ohio, resident has contracted measles, the state's first case in 2025. The Ohio Department of Health reported Thursday that the adult was unvaccinated and had been in contact with someone who had traveled outside of the country.

Kansas and Ohio health officials have confirmed several measles cases among mostly unvaccinated children and adults, as the total number of states reporting measles outbreaks reaches 18.

A confirmed measles outbreak in Ohio has health officials urging members of the public to protect themselves through vaccination. Originating in Texas, this year’s measles activity had spread to 20 jurisdictions in the U.

Ashtabula County reported a measles case, the first of the year for Ohio. When was the last time Stark County had a confirmed case?

A measles outbreak in Kansas doubled in less than a week to 23 cases and has “a possible link” to outbreaks in Texas and New Mexico that have sickened more than 370, the state health department said Wednesday.

Ohio’s first case of measles was announced on March 20 in Ashtabula County. This led to the identification of ten other cases in Ashtabula County, nine of which had been in contact with the reported first case, according to the Ohio Department of Health.

The measles outbreak in western Texas is continuing to grow with a total of 422, according to new data published Tuesday.