B.C. health officials are investigating what's believed to be the first human case of avian influenza acquired in Canada after a teenager tested presumptively positive for the disease, the Ministry of Health announced Saturday.

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.

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

Traffic from Detroit to Canada was halted Saturday. Outbound travelers have been rerouted to the Detroit-Windsor tunnel.

Incoming traffic from the United States to Canada is being rerouted at the Ambassador Bridge, Windsor police and the Canada Border Services Agency (CBSA) said Saturday.

The Ambassador bridge is reopened after an investigation stopped traffic going into Canada for almost five hours Saturday, police say.

Moderna said on Friday Canada's health regulator has approved its vaccine for respiratory syncytial virus in adults 60 years and older, making it the country's first authorised mRNA-based shot for the condition.