Q: What is avian influenza? Avian influenza, also known as bird flu, is a viral infection that primarily affects birds but ...

Mississippi state and federal officials have confirmed an outbreak of a strain of bird flu not reported in the U.S. since ...

As the H5N1 avian influenza outbreak continues, scientists are working to better understand the virus's threat to human ...

This season's influenza vaccine may have been a poor match to a strain of the flu virus that caused many infections this winter, early data released by the Centers for Disease Control and ...