The H5N1 virus that infected a Canadian teen appears not to have spread, but it shows signs of mutation that makes flu ...

Elephant seal numbers in Argentina remain low after a deadly H5N1 outbreak, highlighting the virus's dangerous adaptability.

Poultry on a commercial farm in England have been infected with the bird flu virus, the U.K. government said Sunday.

The Centers for Disease Control and Prevention has signed an agreement with Alveo Technologies to develop a handheld avian ...

A teenager in British Columbia, Canada, is critically ill with H5N1 bird flu, marking the country's first human case of this ...

A teenager in British Columbia who is being treated in the critical care unit was confirmed to have been infected with the ...

A hospitalized Canadian teen has health officials in both Canada and the U.S. expressing warnings over bird flu cases.

A teenager in British Columbia has become the first person in Canada to test positive for the deadly H5N1 bird flu. Health ...

Canadian officials have announced that a teenager in British Columbia has been hospitalized in critical condition with what is believed to be bird flu.

A teenager in Canada is critically ill with the country's first human case of H5N1 bird flu. Health officials aren't sure how ...

A teenager diagnosed with bird flu in British Columbia is the first domestically acquired human case of H5N1 avian influenza, ...

Oregon confirms its first human bird flu case, the latest in dozens of cases in the U.S. this year. Experts discuss the ...