Influenza A Virus, H5N1 Subtype
Synonyms
H5N1 Virus
H5N1 Viruses
Virus, H5N1
Viruses, H5N1
A subtype of INFLUENZA A VIRUS comprised of the surface proteins hemagglutinin 5 and neuraminidase 1. The H5N1 subtype, frequently referred to as the bird flu virus, is endemic in wild birds and very contagious among both domestic (POULTRY) and wild birds. It does not usually infect humans, but some cases have been reported.