In the US state of Nevada, a newly identified H5N1 bird flu strain, D1.1, has been found in six dairy herds. Scientists warn ...

The strain of bird flu is distinct from what has previously been found in dairy cattle. The finding raises some worrying ...

A new strain of bird flu has infected dairy cows in Nevada, marking the second time the virus has jumped from birds to cattle ...

Experts said it raises new questions about wider spread and the difficulty of controlling infections in animals and the ...

The Milwaukee County Zoo has closed its aviary for the "foreseeable future" in an attempt to protect its birds from the bird ...

Dairy cattle in Nevada have been infected with a new type of bird flu.

A more dangerous strain of H5N1 bird flu has been detected in cattle for the first time, the US Department of Agriculture ...