The CDC just confirmed the first case of severe bird flu in the U.S, and California just declared a state of emergency.

As flu season ramps up in the U.S., influenza is not as simple as it first appears, with several different strains in play.

Bird flu is caused by a type of influenza A virus. These viruses can infect a wide variety of wild and domestic birds, ...

California officials have declared a state of emergency over the spread of bird flu, which is tearing through dairy cows in ...

A person in Louisiana has the first severe illness caused by bird flu in the U.S., health officials said Wednesday.

At least 61 people in the US have contracted bird flu amid outbreaks in poultry and dairy cows. What are the symptoms? What ...

The risk of H5 bird flu remains low in Los Angeles County, but these confirmed cases of the virus in pet cats are a reminder ...

The H5N1 strains are becoming more concerning as the first severe U.S. case has been detected and California declared a state ...