Arkansas had its first case of highly pathogenic avian influenza (HPAI) of 2022, with the virus being confirmed in a flock of commercial broiler breeders in Madison County.

The new case was announced on October 7 by the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS).

The size of the Madison County flock has not yet been disclosed.

Samples from the flock were tested and confirmed at the APHIS National Veterinary Services Laboratories in Ames, Iowa.

APHIS stated that it is working closely with state animal health officials in Arkansas on a joint incident response. State officials quarantined the affected premises, and birds on the property will be depopulated to prevent the spread of the disease.

South Dakota gamebird operation hit by HPAI

APHIS also reported that a commercial upland gamebird operation was the site of a confirmed HPAI case in Brule County, South Dakota. There were 500 birds in the flock, and the case was confirmed on October 6.


Brule County’s last case was confirmed on March 30, when 55,100 commercial turkeys were affected.

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

Read our ongoing coverage of the global avian influenza outbreak.

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