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 ...

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

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 ...

The first human death caused by H5N1 in the U.S. was reported in Louisiana on Jan. 6. Here's what to know about bird flu.

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 says hospitals treating people for the flu should test them for avian ...

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

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 and Prevention published its weekly research report Thursday, the first time since President ...