Highly pathogenic avian influenza (HPAI) was confirmed on February 24 in commercial poultry flocks in Pennsylvania, South Dakota and Kansas, impacting the broiler, turkey and egg industries.
Pennsylvania
The latest HPAI case to be confirmed in Pennsylvania, according to information from the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS), was a commercial broiler flock in Lancaster County. The affected flock included 157,300 chickens.
The broiler flock was hit by HPAI on the same day Gov. Josh Shapiro, Agriculture Secretary Russell Redding and other officials met with poultry producers in Lancaster to discuss ways the state is aiding with HPAI response.
With this latest detection, 14 commercial poultry flocks have been hit by the virus so far in 2026. All but one of those have been in Lancaster County, with the other being a flock of 70,000 laying hens in Dauphin County.
South Dakota
APHIS reported that a flock of 50,400 commercial meat turkeys in Beadle County had been struck by HPAI.
This is the third commercial poultry operation in South Dakota to be hit by HPAI so far in 2026, with all three instances involving turkeys. The other two affected flocks were in Charles Mix County, with those cases being confirmed on February 3 and February 18.
Kansas
The latest flock infection in Kansas occurred in Pottawatomie County in a commercial egg laying breeder flock. A total of 24,000 birds were affected.
This is the state’s second commercial poultry flock to by hit by HPAI in 2026, with the other also occurring in Pottawatomie County. That case was confirmed on January 6 and involved 380,000 commercial pullets.
HPAI was also confirmed in a commercial upland gamebird flock in Kansas on February 3. That situation involved 5,200 birds in Haskell County.
To learn more about HPAI cases in commercial poultry flocks in the United States, Mexico and Canada, see an interactive map on WATTPoultry.com.Â
View our continuing coverage of the global avian influenza situation.Â