The United States has reported its first outbreak of H5N9 bird flu on a duck farm in California, according to the World ...

Bird flu infections around the U.S. have forced mass cullings and resulted in the deaths of zoo animals and pets ...

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

The Pennsylvania Department of Agriculture shut down a poultry farm in southeastern Pennsylvania after finding bird flu.

At least one bird from a commercial poultry operation in Lancaster County has tested positive for highly pathogenic avian ...

The highly contagious bird flu has hit Montgomery County, Maryland, where officials say a backyard flock of chickens tested ...

A California duck farm has culled thousands of birds as the virus seems to be trading genetics with other viruses ...

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

According to the North Carolina Department of Agriculture, a commercial turkey operation in Sampson County has tested ...

New York has ordered a weeklong shutdown of all live bird markets in New York City, Westchester and Long Island after seven ...