One month has passed since a case of highly pathogenic avian influenza (HPAI) has been reported in commercial poultry flocks in Canada.

While the Canadian Food Inspection Agency (CFIA) reported that HPAI was confirmed in a backyard poultry flock in Yarmouth County, Nova Scotia, on March 4, the last cases of HPAI in commercial poultry were confirmed on February 8, in which three commercial poultry flocks in Quebec were affected. Two of those cases were in the Beauharnois-Salaberry Regional County Municipality and the other was in the Le Haut-Saint-Laurent Regional County Municipality. 

Not since the very early days of the outbreak has there been this long of a period with no new cases of HPAI in Canadian commercial poultry. The country’s first case in a commercial flock was confirmed on February 3, 2022, in Nova Scotia. The province had another commercial flock affected on February 11, 2022. The next commercial HPAI case in Canada was confirmed one month and one day later in Quebec. By the end of April 2022, cases were confirmed in Alberta, Quebec, British Columbia, Saskatchewan and Manitoba. 

In addition to being confirmed in commercial flocks in those provinces, HPAI has also been confirmed wild birds and/or backyard poultry in the provinces of New Brunswick, Prince Edward Island and the province  where North America’s first detection of HPAI during the current outbreak was found, Newfoundland and Labrador.


All three Canadian territories –Yukon Territory,  Northwest Territories and Nunavut – have also had confirmed cases of HPAI in wild birds during the current outbreak.

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.