A new nasal spray vaccine for H5N1 bird flu has shown promising early results, raising hopes it could one day be used to help ...

H5N1 avian influenza, commonly known as bird flu, has long ceased to be just a problem for birds. Since its arrival in the ...

As bird flu continues to circulate in animals and spill over into humans, researchers are racing to stop it before it adapts ...

Health officials on Thursday said they don't know how a Missouri person caught bird flu but believe it may be a rare instance of a "one-off" standalone illness. Folks worried about bird flu, ...