No More Swine Flu, Hello Influenza A

WHO has changed its name,because the animal is not to be blame and this influenza has become a human flu.As to the new and official nomenclature Influenza A (H1N1), H1N1 is the designation for the seasonal flu. The letter A corresponds to the type of human influenza which tends to become pandemic. The number 1 is the classification of virus strains. H is the initial for hemagglutinin and N corresponds to the term neuraminidase (two viral proteins). All influenza A viruses contain hemagglutinin and neuraminidase.