San Mateo County public health officials reported finding H5N1 bird flu in a pet cat and a backyard poultry flock.

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

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

The variant of bird flu that killed a Louisiana resident has now been found in dairy cows. Until now, the human cases of bird ...

Multiple cases of bird flu in chickens are forcing the closure of live poultry markets in parts of New York state, Gov. Kathy ...

Bird flu is widespread in wild birds worldwide and is causing outbreaks in poultry and dairy cows with several recent human ...

A version of the H5N1 virus that has killed one person and severely sickened another has been detected in milk samples ...

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

Cows in Nevada have been infected with a strain of H5N1 bird flu different from the strain detected in all other herds to ...

More than 156 million chickens, ducks, turkeys and other fowl have been slaughtered across the United States since the ...

All live poultry markets in New York City and some of its suburbs were ordered Friday to close for a week after the detection ...

Two state health departments have issued new guidance on testing for the bird flu, following a CDC advisory, even as it says ...