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

The discovery of bird flu in the San Mateo backyard flock prompted health officials to remind people to take biosecurity ...

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

While the H5N1 bird flu keep spreading, the first reported H5N9 outbreak in the United States has been identified on a duck ...

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.

The first outbreak of H5N9 bird flu in poultry has been reported in California on a duck farm leading to the culling of ...

A new strain of a highly pathogenic and rare strain of bird flu has been reported on a duck farm in central California.

A California ... reservoir hosts for influenza A viruses," the spokesperson said. Both H5N9 and H5N1 were found to be infecting ducks at the farm, the USDA said. "The H5N1 virus is widely ...

A new strain of bird flu — H5N9 ... had been infected by both the H5N1 and H5N9 strains. “This case is not unexpected or alarming,” said Annette Jones, California state veterinarian ...

(Photo by DON EMMERT/AFP via Getty Images) H5N9 is a strain of the H5N1, H7N9, and H9N2 bird flu virus subtypes ... was also announced on the same day California's governor declared a state ...