Measles outbreak in Ashtabula County

CLEVELAND, Ohio (WOIO) - The Ohio Department of Health announced there is a measles outbreak in Ashtabula County.

The ODH and Ashtabula County have identified 10 cases. Nine are linked to a man reported last week as the state’s first measles case of 2025. None of the individuals were vaccinated.

The ODH also confirmed one case of a visitor in Knox County who exposed others to measles in Knox and nearby counties.

“Given the measles activity in Texas, New Mexico, and other states around the country, we’re disappointed but not surprised we now have several cases here in Ohio and known exposure in some counties,” said Dr. Vanderhoff. “This disease can be very serious, even deadly, but it is almost entirely avoidable by being properly vaccinated. Measles is especially dangerous for young children, so I strongly urge all parents across Ohio to make sure your children are vaccinated. It is a crucial layer of protection that can save lives.”

According to the ODH, they are working with health departments in Ashtabula and Knox counties to follow up on potential exposures and to promote opportunities for vaccination.

For more information, visit ashtabulacountyhealth.com and knoxhealth.com.

The Centers for Disease Control and Prevention (CDC) defines a measles outbreak as three or more related cases. Measles can spread quickly, and each case can lead to an additional 12 to 18 cases if people aren’t protected against the disease. The CDC reported 378 cases nationwide as of March 20.

Ohio had 90 cases of measles in 2022, when an outbreak in central Ohio totaled 85 cases. The state had one measles case in 2023 and seven in 2024.

More information about measles is available on the CDC website, including general information and the recommended immunization schedule. ODH also has a measles FAQ page.