The case concerned health officials and experts because human-to-human transmission of the H5N1 strain of avian influenza could mark the start of a new pandemic.

A teenager in British Columbia, Canada, has contracted the H5 strain of bird flu, marking the country's first confirmed human case. Health officials are investigating the source of the infection, suspecting animal-to-human transmission.

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 West Coast Canadian province of British Columbia said on Saturday that it had detected the first presumptive positive case of H5 bird flu virus infection acquired by a human in Canada. The individual presumed to be infected is a teenager who is receiving care at a children's hospital,

Health officials in B.C. are investigating Canada’s first-ever presumed human cases of avian influenza after a B.C. teenager tested presumptively positive for the disease, the Ministry of Health announced Saturday.

First presumptive human H5 bird flu case detected in British Columbia, Canada. The teenager, presumed to be infected, is from the Fraser Health region and is currently receiving c

British Columbia's Ministry of Health says the first suspected human case of bird flu contracted in Canada has been detected in B.C.