Cambodia today reported its thirteenth human H5N1 avian flu case of the year, part of an overall acceleration of activity ...

Bird flu was nearly everywhere in the U.S.—in chickens, cows, pet cats and even humans. Cases have gone down, but experts ...

The CDC declared the end of its emergency response to H5N1 avian flu as a health threat to humans, David Murray writes.

Farm workers facing possible arrest would likely resist getting tested for bird flu should there be a resurgence this fall, ...

H5N1 avian influenza has long been a concerning virus. Since its discovery in 1996 in waterfowl, bird flu has occasionally ...

For months, bird flu was seemingly everywhere in the U.S.: news headlines reported the highly pathogenic H5N1 avian influenza ...

New versions of the H5N1 virus are increasingly adept at spreading. Suggestions to either let it rip in poultry or vaccinate the birds could backfire.

The H5N1 avian flu is circulating in cows and other mammals. Whether it will make a permanent leap to humans is another question ...

PHNOM PENH, July 22 (Xinhua) -- A six-year-old boy from southeast Cambodia's Tboung Khmum province has been confirmed for H5N1 avian influenza, raising the number of cases to 13 so far this year, the ...

A pandemic in the animal world. The first highly pathogenic avian influenza virus of subtype H5N1 emerged in China in 1996. Since then, H5 viruses have spread widely in Europe, Africa, North ...

"This is the first case of H5N1 bird flu in the U.S. that has been linked to exposure to a backyard flock." The confirmation comes weeks after the first case of bird flu was found in a child in ...