Canadian officials have announced that a teenager in British Columbia has been hospitalized in critical condition with what is believed to be bird flu.

H5N1 avian influenza, more commonly known as bird flu, has infected more than 100 million birds in the U.S. and almost 500 ...

State health officials are investigating possible sources of the H5 avian influenza virus detected for the first time in a wastewater sample from Oahu, but reassure residents that public risk remains ...

In California, the outbreak among cows began in late August, and has infected nearly 300 dairy herds. The H5N1 bird flu was also recently detected in a pig in a backyard farm in Oregon — the first ...