A new strain of bird flu has infected a dairy worker in Nevada, marking the first cow-spread case, the CDC has reported.

A dairy worker in Nevada has been infected with a strain of H5N1 bird flu—genotype D1.1—that has newly spilled over to cows, ...

The newer strain had been seen before in more than a dozen people exposed to poultry, but this is the first time an infection ...

New evidence shows that bird flu, or avian influenza, is mutating beyond chickens and cows. A Nevada dairy worker tested ...

A Nevada dairy worker has tested positive for a newly identified strain of bird flu, sparking concerns about potential cow-to ...

A dairy worker in Nevada is the state’s first human case of bird flu after the employee was exposed to infected dairy cattle.

A dairy worker in Nevada was infected with a new type of bird flu that’s different from the version that has been spreading ...

A Nevada dairy worker was infected with a version of bird flu that is known to have killed one person in the United States and severely sickened a teen in Canada, state and federal health authorities ...

A new human case of the bird flu has been confirmed in Nevada, and doctors are worried that it's a newer variant.