Two more commercial poultry flocks in California have been affected by highly pathogenic avian influenza (HPAI), the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) reported.
On November 21, the presence of HPAI was confirmed in a commercial meat duck flock in Tulare County, involving 96,900 birds.
One day later, the virus was confirmed present in a flock of 538,600 commercial table egg layer pullets in Merced County.
With these new detections, California has now had 30 flocks struck by HPAI in 2024, and the number of birds affected now exceeds 8.3 million. No other state has experienced such widespread HPAI-related losses in 2024.
APHIS has also reported 248 cases of the virus being confirmed in dairy cattle in California during the past 30 days.
Avian influenza in Canada
The Canadian Food Inspection Agency (CFIA) has reported the presence of HPAI in four more commercial poultry flocks. All three were located in Abbotsford, British Columbia.
Two of the flock infections were confirmed on November 22, one was confirmed on November 23, and the other on November 24.
Information relating to the number of birds affected or the type of birds in those flocks has not been disclosed.
According to CFIA data, British Columbia has had 49 commercial poultry flocks struck by HPAI in 2024.
View our continuing coverage of the global avian influenza situation.
To learn more about HPAI cases in commercial poultry flocks in the United States, Mexico and Canada, see an interactive map on WATTPoultry.com.
