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

Avian influenza H5N1 infection in humans has spread to seven U.S. states, growing from 46 cases last week to 52 cases this week.

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

The U.S. Centers for Disease Control and Prevention (CDC) on Friday confirmed highly pathogenic form of bird flu in a person ...

Canada’s National Microbiology Lab confirmed the presumptive prognosis after testing genomic sequencing, officials said.

Meanwhile, the U.S. Centers for Disease Control and Prevention continues to express concern about the H5N1 bird flu virus circulating in American dairy cows, with 46 human cases reported so far.

Scientists at the National Microbiology Laboratory in Winnipeg sequenced the genome of the virus from the infected B.C. teen to confirm it is H5N1. The tests showed the version of the virus is ...

A teenager in British Columbia is in critical condition after being exposed to H5N1 bird flu. The source of the virus has not been determined. The teen is the first presumptive case of H5N1 bird ...

Five new human cases of H5N1 bird flu have been detected in California. Oregon’s first known human case has been confirmed. Authorities say all cases were transmitted from animals to humans ...

Poultry on a commercial farm in England have been infected with the bird flu virus, the U.K. government said Sunday. The H5N1 virus was found in kept birds in St. Ives, a seaside town in Cornwall.

Oregon health officials confirmed on Friday that an Oregon resident had tested positive for H5N1, an avian influenza strain that’s spread rapidly among bird flocks. This marks the state’s ...

A teenager diagnosed with bird flu in British Columbia is the first domestically acquired human case of H5N1 avian influenza, the Public Health Agency of Canada says. Since Influenza A or flu ...