A new strain of bird flu, the D1.1 variant, has been detected in a dairy worker in Nevada, marking the first human case of ...

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

The worker was exposed to the D1.1 strain after working with infected dairy cattle in Churchill County, the Central Nevada Health District confirmed Monday. The new genotype was first confirmed on ...

Arizona agricultural officials say they now have the first detection of H5N1 avian influenza in milk produced by a dairy herd within the state.

The same genotype was detected in a severe human case that resulted in the United States’ first bird flu-related death.

The strain, known as D1.1, was detected in Nevada dairy cattle after being the predominant variant in North American birds last fall and winter. The USDA did not clarify the exact number of cows ...

Scientists are closely watching the new infections in Nevada because gene sequences from affected cattle have shown that they are a subtype of the H5N1 virus, D1.1, which has been associated with ...

The worker was exposed while working with infected dairy cattle when he contracted the D1.1 genotype bird flu strain. What is the new bird flu strain? According to the U.S. Department of ...

A new strain of bird flu, the D1.1 variant, has been detected in a dairy worker in Nevada, marking the first human case of H5N1 avian influenza in the state. While the infection generally leads to ...