美国农业部说，对来自内华达州的牛奶进行的基因组测序发现了与之前不同的毒株，被称为D1.1基因型，这是在奶牛中首次发现该毒株。据农业部说，在这之前，自3月末以来报告的所有957例奶牛感染禽流感病例都是由另一个毒株--B3.13基因群造成的。

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

A second strain of bird flu has been detected in U.S. dairy cattle, marking the first confirmed infections of this particular ...

U.S. dairy cattle tested positive for a strain of bird flu that previously had not been seen in cows, the U.S. Department of ...

The U.S. Department of Agriculture has detected a bird flu strain in dairy cattle that previously had not been seen in cows, ...

The U.S. Department of Agriculture has detected a bird flu strain in dairy cattle that previously had not been seen in cows, ...

At least four cattle herds in Nevada have tested positive for a strain of H5N1 bird flu never before seen in cows, state ...

Dairy cattle in Nevada have been infected with a new type of bird flu that's different from the version that has spread in ...

As bird flu spreads in the United States, are there are any risks of the virus from drinking milk or eating eggs? Here's what you need to know, according to experts.

The U.S. Department of Agriculture has detected a second bird flu strain in dairy cattle that previously had not been seen in ...

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

A variant of the H5N1 bird flu has now infected dairy cattle in Nevada, according to reports from the United States ...