Another spillover of the H5N1 bird flu virus from wild birds to dairy cattle appears to have occurred, this time in Arizona.

A research veterinarian says an additional strain of the H5N1 virus has been found in dairy cattle, but it’s one he’s seen ...

The USDA said four Nevada dairy herds were infected with an H5N1 bird flu strain that has circulated in wild birds, making ...

After a different strain of bird flu was recently found in cattle for the first time, experts reveal what this means in our fight against the virus.

This version of the virus is circulating broadly in wild birds and is different from the virus that has been causing dairy ...

The detection indicates that distinct forms of the virus known as Type A H5N1 have spilled over from wild birds into cattle ...

That could mean the H5N1 infection might become endemic ... with two severe infections in people: a teenager in British Columbia who was hospitalized in critical condition last fall but eventually ...

A few weeks later, in early November, a 13-year-old girl in British Columbia, Canada, also tested positive for H5N1’s D1.1 ...

Over the past week, a series of developments have reaffirmed the imminent danger of an H5N1 “bird flu” pandemic, for which ...

It is also the version behind the severe infection of a teenager in British Columbia, Canada, last year, and a fatal infection in Louisiana last month. Since the beginning of the H5N1 outbreak in ...

Federal health officials say a dairy worker in Nevada has been infected with a new type of bird flu that’s different from the ...