Influenza A

Influenza A virus

Influenza A virus, or IAV, is a pathogen with strains that cause seasonal flu in humans; it can also infect birds and some mammals. Strains of IAV circulate constantly in bats, pigs, horses, and dogs, while other mammals may be infected occasionally. It has also been the cause of a number of pandemics, most notably the Spanish Flu pandemic from 1918–1920. Subtypes of IAV are defined by the combination of the molecules on the surface of the virus which provoke an immune response; for example, "H1N1" denotes a subtype that has a type-1 hemagglutinin protein and a type-1 neuraminidase protein. Variations within subtypes affect how easily the virus spreads, the severity of illness, and its ability to infect different hosts. The virus changes through mutation and genetic reassortment, allowing it to evade immunity and sometimes jump between species.

Sumber Data : Wikipedia

• Related Topics:  Influenza A Virus Category, Influenza Vaccine - Influenza Vaccines, Colloquially Known As Flu Shots Or Flu Jab, Are Vaccines That Protect Against Infection By Influenza Viruses. New Versions Of The Vaccines Are Developed Twice A Year, As The Influenza Virus Rapidly Changes., Veterinary Virology - Veterinary Virology Is The Study Of Viruses In Non-Human Animals. It Is An Important Branch Of Veterinary Medicine., Animal Virology