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.

OTTAWA (Reuters) -Canada has detected its first presumptive case of H5 bird flu in a person, a teenager in the western province of British Columbia, health officials said on Saturday. The teenager likely caught the virus from a bird or animal and was receiving care at a children's hospital, the province said in a statement.

A human case of bird flu in Canada is a rare event: The only other confirmed human ... “Sadly, we’ve seen an uptick in the number of H5-infected animals and people in the U.S.,” Bright says. “It’s no surprise to see the virus spreading beyond ...