Scientists have known for more than a year that bird flu, H5N1, made the jump from wild birds and common poultry to cows and ...

Decreased milk production, death, and early removal from a single herd of adult dairy cows infected with the H5N1 strain of ...

Avian influenza virus from the ongoing outbreak in dairy cattle appears to be keeping its bird-infecting features rather than ...

Dairies say the USDA relief money helped them sustain operations as bird flu decimated milk production, but critics say the ...

Until recently, all dairy herd detections in the U.S. had been infected with a form of bird flu, or avian influenza, known as B3.13.

H5N1 avian influenza virus was first found infecting cattle in 2024, though its risk of adapting to infect and spread through ...

A new CDC report found evidence of previous bird flu infection in veterinary practitioners who work with cattle and who did ...

A group of researchers says delayed treatment of a type of bird flu now spreading on dairy farms in the United States may ...

One year ago, the first bird flu infection in a human in the United States was reported in a Texas dairy worker. There have ...

Infecting dairy cattle hasn’t yet given H5N1 bird flu an evolutionary boost toward easy person-to-person spread. Michael M. Santiago/Getty Images By Tina Hesman Saey April 28, 2025 at 9:00 am ...

The parasitic fly that attacks warm-blooded animals was eliminated from the United States in the 1960s, but it’s creeping ...

Cows that are sick with bird flu eat less and produce thick and discolored milk. But the infection isn’t nearly as fatal in cattle as it is in poultry, making the virus harder to see in the former.