The Ohio Department of Health (ODH) issued a news release on Wednesday announcing that there is a measles outbreak in Ashtabula County in Ohio.

The release also states that there is one confirmed case of a visitor in Knox County who exposed other to measles in Knox and nearby counties.

ODH Director Bruce Vanderhoff, MD, MBA said that ODH and Ashtabula County have identified 10 measles cases.

Nine of these cases are linked to an adult male reported last week as the state's first case of 2025.

According to the release, none of the affected individuals were vaccinated.

Dr. Vanderhoff is urging families in Ohio to be protected, quoted in the release as saying," 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."

The Centers for Disease Control and Prevention (CDC) defines a measles outbreak as three or more related cases according to the release.

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