A CDC study has found H5N1 bird flu antibodies in veterinarians who had no symptoms and no knowledge they had been working ...

Nearly 119,000 birds have been culled at a farm in California after a bird flu called H5N9 was detected among the poultry.

A new strain of bird flu, H5N9, has been detected for the first time in the United States, raising concerns about how it continues to spread.

Dr Angela Rasmussen, a virologist in Canada, warned: 'It does suggest there's enough [H5N1] virus around that reassortment might become more frequent. With enough H5 in these animals and enough ...

A California duck farm has culled thousands of birds as the virus seems to be trading genetics with other viruses ...

A new strain of bird flu has been detected on a duck farm in California. The World Organisation for Animal Health reported ...

First U.S. detection of virulent H5N9 strain, at a California duck farm, draws scrutiny as evidence of genetic reassortment that could trigger human outbreaks.

A new strain of H5N9 bird flu was detected at a commercial duck operation in California's Merced County. All the ducks were ...

A new variant of the H5N1 bird flu — the same one that led to the death of a Louisiana man — has for first the first time ...

The California duck farm's strain of H5N9 is different from those earlier cases because this time it is closely related to a ...

The first U.S. H5N9 outbreak has raised concerns as scientists warn of evolving bird flu risks—here's what you need to know about the symptoms.