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.

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

Scientists are calling on the U.S. Centers for Disease Control and Prevention (CDC) to disclose data about the risks of ...

Cats that became infected with bird flu might have spread the virus to humans in the same household and vice versa, according ...

including avian influenza A(H5N1), have gained the ability to spread easily and sustainably among people, according to the CDC. The spread of bird flu among poultry flocks in the United States ...

The Centers for Disease Control and Prevention are monitoring the bird flu situation in the United States. Here's what to ...

Is it seasonal flu or bird flu? CDC prompts hospitals to fast-track subtype testing of sick patients to tell the difference.

As cases of H5N1, also known as avian flu or bird flu, continue to surface across the U.S., safety precautions are ramping up. The U.S. Centers for Disease Control and Prevention (CDC) announced ...

The Centers for Disease Control announced the first human death from H5N1 avian flu or "bird flu" in the United States on Jan ...