The H5N1 virus is responsible for a worldwide avian flu pandemic in chickens. The virus has been determined to be a subtype of the influenza A virus and was first observed in China in 1996.

H5N1 is an influenza A virus, like many seasonal flu strains, and it requires subtyping to distinguish it from the common flu. “While human cases remain rare, the presence of H5N1 in poultry and ...

Highly Pathogenic Avian Influenza, also known as bird flu or H5N1, has made recent headlines ... which is a subtype of the Influenza A virus, the CDC currently reports that the threat to the ...

“I think that under certain specific conditions, the spread of the avian influenza virus by wind can occur ... who tested positive for H5N1 antibodies after attending a conference, despite ...