The first human to have ever been infected with H5N5 strain of bird flu has died, Washington state health officials confirmed late Friday.

A Washington state man is believed to be the first person to die from a rare strain of bird flu, but state health officials ...

The patient, an older adult with underlying health conditions, developed a high fever, confusion and respiratory distress ...

Recovery from deadly influenza infection may hinge on helping the lungs heal in addition to stopping the virus, according to ...

Cell-based influenza vaccines were superior to egg-based vaccines across patient populations during a recent influenza season ...