The Ohio Department of Agriculture is investigating a report of bird flu in Northwestern Ohio.

According to the release, the department received a presumptive positive test result of highly pathogenic avian influenza (HPAI) in an Ohio dairy cattle herd.

The dairy farm received cows from a Texas dairy on March 8, 2024. The Texas dairy reported a confirmed case of HPAI shortly after.

The illness is causing dairy cows to have decreased lactation, low appetite and other symptoms.

State animal health officials were notified on March 25 after federal agencies confirmed the detection of HPAI in dairy herds in Kansas and Texas. Since then, HPAI has been confirmed in cows in Idaho, Michigan and New Mexico.

According to the release, agencies are testing the sick animals and unpasteurized clinical milk samples.

Sick dairy cattle from affected herds range between 1% to 20% with an average of 10% of the milking herd being affected.

There have been no confirmed deaths due to the disease and most sick cows recover in a few days.