A branch of the H5N1 bird flu family tree that hadn't previously been seen in cattle has now been detected in dairy cows.

The CDC's Morbidity and Mortality Weekly Report ( MMWR) resumed publishing after an unprecedented 2-week hiatus, but without the three H5N1 avian influenza papers that were slated to publish on Jan.

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

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.

UC San Francisco's Rais Vohra, MD, explains recent increase in reported virus infections and the risks of consuming raw cow’s milk.

Bird flu, also known as H5N1, continues to spread among U.S. livestock, driving up egg prices and worrying public health experts.

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 ...

Two rare bird flu strains have emerged since late January, prompting public health concerns during a freeze on federal health communications.

A vian flu first made the jump from birds into dairy cows on farms in a number of US states in spring 2024. Until now, all ...

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

Nearly 119,000 birds have been culled at a farm in California after a bird flu called H5N9 was detected among the poultry ...

Kavya Beheraj/Axios Dozens of newly confirmed cases of avian influenza in wild birds and the first verified U.S. case of a new strain of the virus are raising concern that the bird flu crisis may be ...