The Ohio Department of Health has reported a measles outbreak in Ashtabula County, with a total of 10 cases identified, including one in Knox County. None of the individuals were vaccinated, and officials urge parents to ensure their children are vaccinated to prevent the spread of the disease. Measles is highly contagious and can lead to serious complications, especially in young children. The CDC recommends a two-dose regimen of the measles, mumps, and rubella vaccine for protection against measles. Ohio's school vaccination rates have fallen, emphasizing the importance of vaccination to prevent outbreaks.