The Canadian Food Inspection Agency (CFIA) has also been testing milk for signs of H5N1 in dairy cows. Canada has had no cases of H5N1 reported in dairy cattle. There's also no evidence of bird flu in samples of commercial milk. "Milk and milk products that have been pasteurized are safe to consume," the Public Health Agency of Canada said.

British Columbia health officials have yet to identify a likely source of the infection, though none of the teen's contacts have tested positive for the virus so far.

Hawaii is the only US state that hasn't reported H5N1 avian flu in birds or animals. The state hasn't reported any recent detections in animals or people. Wastewater sampling can't determine if the virus is highly pathogenic or if the source was from an animal or a person.

Canada has reported H5N1 bird flu in wildlife and domestic birds. This year, there have been at least 24 reports of the virus in domestic bird facilities, including at least 10 infected premises in BC in October, according to data from the Canadian Food Inspection Agency.

A teen in Canada may be the first person to catch an H5 bird flu virus within the country. Health officials are now working to confirm the diagnosis.

Canada detected its first human case of the new strain. Sen. Elizabeth Warren (D-Mass.) said Monday that President elect-Trump “and his transition team are already breaking” a law on presidential transition.