A branch of the H5N1 bird flu family tree that hadn't previously been seen in cattle has now been detected in dairy cows.

Nevada dairy cattle infected with a new bird flu strain, Type A H5N1 D1.1, raising concerns of multiple transmission channels ...

SHREVEPORT, LA - A second stain of bird flu has been detected in dairy cows in Nevada. So far, we have not seen the problem in Louisiana. This strain had only been detected in wild birds and poultry, ...

Until last week, all bird flu in dairy herds had been identified as the B3.13 variant, which was believed to have come from ...

Herds of cattle in Nevada tested positive for the strain of H5N1 bird flu never before seen in cows, state agriculture ...

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

Dairy cows in Nevada have been infected with a new strain of bird flu virus different from the one circulating in other herds ...

Dairy cattle in Nevada have been found to be infected with a new type of bird flu, distinct from the one that has been ...

A shift in the H5N1 virus has allowed it to spread more easily from birds to cows, raising concerns about its evolution.

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 ...

Dairy herds in Nevada have tested positive for a newer strain of the H5N1 bird flu virus, which has been linked to severe infections in humans.This strain diff ...