While the risk to humans of exposure from cows or milk remains low, this new flu spillover from birds into cows raises the need for continued surveillance.

The U.S. Department of Agriculture said Wednesday that a second type of H5N1 bird flu had infected U.S. dairy herds, ...

A dairy worker in Nevada has reportedly been infected by the killer variant of H5N1 bird flu; analysis shows changes in new ...

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

That could mean the H5N1 infection might become endemic, or continuously circulating, in birds in North America, and that may eventually spell trouble for people, too. “In my opinion ...

The USDA said four Nevada dairy herds were infected with an H5N1 bird flu strain that has circulated in wild birds, making ...

D1.1 was first detected in wild birds September 2024, according to the USDA, and is now the dominant H5N1 lineage in wild birds in North America. In late October, the D1.1 subtype was confirmed in ...

A California duck farm made headlines this week after the World Organization of Animal Health published a report by U.S. authorities that a strain of bird flu that scientists call H5N9 had been ...

Samples from each of Minnesota's 1,625 permitted dairy farms will undergo testing once a month for H5N1, the virus commonly known as bird flu. (Elizabeth Flores/The Minnesota Star Tribune) ...

A woman in Wyoming has been hospitalized with H5N1 bird flu Health officials say ... She is also the fourth person in North America to have been hospitalized with the disease.

CNN reported Saturday night that a dairy worker tested positive for the D1.1 version of the H5N1 bird flu virus. (Irfan Khan/Los Angeles Times) ...