Canada completes month with no commercial HPAI cases

The seasonal slowdown of highly pathogenic avian influenza is apparent in Canada as the last case in a commercial poultry flock was confirmed one month ago in Quebec.

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One month has passed since the Canadian Food Inspection Agency (CFIA) has reported new case of highly pathogenic avian influenza (HPAI) in a commercial poultry flock in the country.

The most recently reported case on the CFIA website involved a commercial poultry flock in Les Maskoutains Regional County Municipality, Quebec, with that case being confirmed on May 6.

Outside of Quebec, the last cases of HPAI in commercial poultry in Canada were reported in April. British Columbia’s last case was confirmed on April 29 in Chilliwack, while Ontario’s last case was confirmed in Norfolk County on April 19.

No other provinces have had confirmed cases in commercial poultry in 2023, although cases of HPAI have been confirmed in backyard flocks in Alberta, Nova Scotia and New Brunswick.

Cases in wild birds and mammals have also been confirmed in various provinces in 2023.

South of the border, the United States has also gone more than a month without any confirmed cases of HPAI in commercial poultry flocks. The most recently reported cases included a pair of commercial turkey flocks. One of those was in South Dakota and the other was in North Dakota, with both cases being confirmed on April 19.

The last cases of HPAI in a backyard flock in the U.S. were confirmed on April 18, but according to World Organisation for Animal Health Standards, HPAI cases in backyard poultry should have any impact on international poultry trade.

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

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