Cases of epizootic hemorrhagic disease were confirmed in Wisconsin dairy cattle, the article reports.

The virus, long associated mainly with wild deer, was found in Waukesha County dairy cows.

Officials said deer outbreaks are also expanding in Fond du Lac and Jefferson counties.

Dairy heifers and captive deer have shown symptoms as well, according to the article.

The piece describes the illness as a virus spread by tiny biting midges.

Veterinary experts in the article say it is not a direct threat to people, and milk and meat rules still hold.

Farmers are urged to watch their herds and report unusual symptoms to state veterinarians.

Limiting exposure to the biting midges is described as the main way to slow spread among livestock.

State and federal agencies are keeping closer watch while laboratories process more samples.

Read the full story on EHD in Wisconsin dairy cattle and the related deer outbreaks.