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。

A second type of bird flu has been found in U.S. dairy cows for the first time, the U.S. Department of Agriculture announced ...

Although it is standard procedure to kill flocks with the outbreak of bird flu, posts on social media twisted the truth.

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

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 ...

Poultry facilities in Dauphin, Cumberland and Lancaster counties have detected avian influenza, the USDA and state Department ...

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

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

The discovery of bird flu in the San Mateo backyard flock prompted health officials to remind people to take biosecurity ...

As bird flu continues to spread across the United States, questions have emerged about the risk of contracting the virus from ...

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