Ohio health officials have declared a measles outbreak after cases were reported in multiple counties, adding to growing concern about the spread of the highly contagious virus in the state. The announcement marks Ohio’s third measles outbreak this year.

According to the Ohio Department of Health, the outbreak declaration was made Thursday by Director Bruce Vanderhoff. State officials said current measles cases are now being tracked across several counties, showing that transmission is no longer limited to a single area.

The development drew attention in Tuscarawas County as the latest outbreak news emerged. While the available details are limited, the declaration signals that public health authorities believe the number and distribution of cases now meet the state’s threshold for an outbreak.

Measles outbreaks often prompt health departments to focus on case tracking, exposure notifications and vaccination guidance. With Ohio now facing its third outbreak of the year, state and local officials are continuing to monitor new reports and respond to cases as they are identified.