A teenager in British Columbia is in critical condition after being diagnosed with Canada’s first human case of H5N1 avian influenza. The source of the infection remains unknown, raising concerns among health experts about the potential for wider impacts. Health Canada confirmed the infection, highlighting that it differs from the strain found in cattle. As the nation grapples with the implications of this development, authorities are urging preparedness and providing information on how to handle avian flu concerns. Health officials emphasize the rarity of such cases as investigations continue.