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The Conversation
The Conversation
Damien Joly, CEO, Canadian Wildlife Health Cooperative, University of Saskatchewan

How we’re tracking avian flu’s toll on wildlife across North America

The highly pathogenic avian influenza virus has been detected in 41 at-risk species, including the snowy owl. The snowy owl was recently recommended for listing under Canada's Species at Risk Act. (Jordi Segers/CWHC), CC BY-NC

Since first being detected in Newfoundland in 2021, a subtype of highly pathogenic avian influenza, HPAI A(H5Nx), has had a dramatic impact on North America.

The poultry industry has suffered the most, with almost 15 million birds dying or being culled to control the virus in Canada. The Supreme Court of Canada recently dismissed a British Columbia ostrich farm’s bid to stop a cull after avian flu was detected on the farm in December 2024.

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