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

California’s state veterinarian tells U.S. House subcommittee that because infected dairy cattle are allowed to develop immunity after exposure, that puts birds and other mammals at risk.

In other developments, a Chinese research team that studied experimental infections involving different inoculation routes ...

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

Preexisting immunity to the 2009 H1N1 influenza virus provided near-complete protection against severe H5N1 disease and ...

Correction May 29, 2025 An earlier version of this web story incorrectly said that the H5N1 flu virus had spread to 41 dairy herds and 24 poultry farms and culling operations. In fact, those ...

As authorities brace for a potential resurgence in bird flu cases this fall, infectious disease specialists warn that the ...