Avian influenza, commonly termed “bird flu”, is caused by the avian influenza virus A. This virus is usually found in wild water birds like ducks, geese, swans, etc. Infected birds shed the virus in ...

Avian influenza, or bird flu, is a broad term that refers to several types of influenza that normally infect birds. The bird flu that’s been making news in the United States is a virus called H5N1.

A patient in Louisiana has died from H5N1 bird flu. This is the first H5N1 bird flu death in the U.S. The virus has shown signs of mutating in patients. The U.S. has experienced its first death ...