A teenager in the Canadian province of British Columbia has tested positive for H5 bird flu, making it the first human case in the country, according to local officials. The source of the infection was not immediately clear. The patient, a teenager from the Fraser Health region, is being treated at BC Children’s Hospital, according to a statement from the provincial government. Details about their symptoms or conditions were not immediately released. “Our thoughts are with this young person and their family during this difficult time,” B.C. provincial health officer Bonnie Henry said. “This is…