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.

A teenager in British Columbia was hospitalized in critical condition with the disease, and officials were working to find out how the person was exposed to the virus.

A British Columbia (BC) teen from the Fraser Health region who was hospitalized with an earlier announced presumptive positive H5 avian flu infection is in critical condition, the province's top health official said today.

A B.C. teenager remains in hospital with avian flu, according to British Columbia's top doctor. On Tuesday, Provincial Health Officer Dr. Bonnie Henry said the teen is suffering from severe respiratory distress.

Canada’s Public Health Agency has confirmed that a British Columbia teenager hospitalized last Friday is the country’s first ever human case of domestically acquired avian flu. The

A Canadian teenager infected with bird flu — that country’s first case involving a locally acquired infection — is in critical condition and experiencing difficulty breathing, health officials said Tuesday.

Cases of H5N1 bird flu in U.S. dairy and poultry workers have largely been mild. However, a new case in a British Columbia teenager has experts worried.

Initial testing had indicated the teenager’s infection was from bird flu and was confirmed in further testing, the Public Health Agency of Canada said in a statement. The teen has been hospitalized in Vancouver since Friday and was reported in critical condition on Tuesday.

Health officials were struggling to answer a broader and potentially worrisome question: how the infection occurred.