Avian influenza is an infectious disease caused by Influenzavirus A that belongs to the genus Alphainfluenzavirus in the Orthomyxoviridae family of -ssRNA virus. Influenzavirus A viruses are species specific and rarely cross the species barrier. However, subtypes H5, H7, and H9 have caused sporadic infections in humans, mostly as a result of direct contact with infected birds. H5N1 high pathogenicity avian influenza virus causes a rapid onset of severe viral pneumonia and is highly fatal.
Category
Viral infectious disease
Brite
Human diseases in ICD-11 classification [BR:br08403]
01 Certain infectious or parasitic diseases
Influenza
1E31 Influenza due to identified zoonotic or pandemic influenza virus
H00399 Avian influenza
Genome-based classification of infectious diseases [BR:br08401]
Viral infections
Infections caused by -ssRNA viruses
H00399 Avian influenza