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

For the first time since 1952, publication of the CDC's Morbidity and Mortality Weekly Report was halted. It returned on Feb.

The newer variant of avian influenza that recently infected dairy cattle in Nevada has a genetic change that’s thought to ...

The soaring price of eggs is a ripple effect of an ongoing outbreak of avian influenza, also known as H5N1 or bird flu, which ...

A small but growing number of house cats have gotten sick from H5N1, the bird flu strain driving the current U.S. outbreak, ...

Pet owners must take "proper precautions to reduce the risk of spread," said Dr. Susan Nelson, a veterinarian and professor.

Greg Herbruck knew 6.5 million of his birds needed to die, and fast. But the CEO of Herbruck's Poultry Ranch wasn't sure how ...

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

The California duck farm's strain of H5N9 is different from those earlier cases because this time it is closely related to a ...

The progression of the species-jumping disease has been unprecedented, including the first-ever U.S. cases of infections in ...

State officials say the highly pathogenic avian influenza – more commonly known as bird flu – is widespread in much of the ...

Migrant farmworkers are on the front lines of the H5N1 surge — but deportation fears complicate virus surveillance ...