The Centers for Disease Control and Prevention should have results later this month that provide more insight into how a Missouri resident, who hadn’t had any contact with infected animals or food, contracted a case of highly pathogenic avian influenza.

The U.S. Department of Agriculture announced Tuesday that four states will launch voluntary pilot programs in the days ahead to test bulk milk tanks on dairy farms for bird flu — a move that’s aimed at making it easier for farmers to ship herds across state lines and for public health officials to track spread of the virus.

The Ohio Department of Agriculture (ODA) has received a presumptive positive test result of highly pathogenic avian influenza (HPAI) in an Ohio dairy cattle herd and is awaiting confirmation from the United States Department of Agriculture’s (USDA) National Veterinary Services Laboratory (NVSL).