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

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 new study published in Nature Communications investigates the outbreak of highly pathogenic avian influenza (HPAI) H5N1 in marine mammals, specifically elephant seals, along the coast of Argentina ...

The report is connected to an outbreak that affected roughly 150,000 birds at a commercial poultry facility in Clackamas County.

Health officials have announced six more H5N1 bird flu infections in humans: five in California and the first known case in ...

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

With migratory waterfowl back for the cold seasons, Oregon is the first state to report new spike in avian flu detections ...

A teenager in British Columbia is critically ill with Canada's first case of the H5N1 bird flu strain. While the virus has ...

It’s been nearly eight months since avian flu was first detected in US dairy herds, and cases in both cows and humans ...

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

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

A Canadian teen in critical condition with bird flu, or H5N1, reportedly had no known prior exposure to the infection before the diagnosis.