A new case of highly pathogenic avian influenza (HPAI) has been confirmed in a flock of commercial turkeys in Buena Vista County, Iowa.

The case was announced in the form of a press release from the Iowa Department of Agriculture and Land Stewardship.

The state agency stated that it, along with the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service, confirmed the presence of HPAI in the flock, but an exact number of turkeys in the affected flock has not yet been released.

The press release was dated December 2, and APHIS has not offered any new information concerning new HPAI cases since that date.


While the size of this most recently affected flock has not been made public, it is known that more birds have been lost to HPAI in Iowa than in any other state. Prior to the Buena Vista County case, the last case of HPAI in a commercial poultry flock in the state was in an egg laying operation in Wright County, confirmed on November 6. At that point, nearly 15.5 million head of commercial poultry had been lost to avian influenza.

Buena Vista County had four previous cases of HPAI in 2022, all of which were confirmed in March. These cases involved three commercial turkey operations and one commercial layer operation, and collectively included 5,486,7000 birds.

To learn more about HPAI cases in commercial poultry flocks in the United States and Canada, see an interactive map on WATTPoultry.com. 

Read our ongoing coverage of the global avian influenza outbreak.