Infectious Diseases 2022

Infectious Diseases 2022

Canada: HPAI at a turkey farm

5 February, 2022

On January 30th, 2022, the Canadian Food Inspection Agency (CFIA) was notified of high mortality in a commercial turkey farm in Western Nova Scotia. The CFIA National Centre for Foreign Animal Disease has confirmed that the virus was H5N1, similar to the viruses reported in non-poultry and wild birds recently in the provinces of Newfoundland and Nova Scotia. The virus has HA cleavage site motif “PLREKRRK/GLF” consistent with highly pathogenic avian influenza strains of H5 subtype.The HA gene segment is A/goose/Guangdong/1996 (Gs/GD) lineage belonging to 2.3.4.4B clade. Phylogenic analysis indicates this virus corresponds to the Eurasian lineage circulating in 2021 in Europe.  
12,000 turkeys at a commercial barn in western Nova Scotia had to be euthanized after avian influenza was discovered at the farm.
Previous cases were a wild goose and backyard chickens not for sale.