influenza03@インフルエンザの構造は、single-stranded RNA genome,a helical nucleocapsid,outer lipoprotein envelope. Virion contains RNA-dependent RNA polymerase;it transcribes the negaive-polarity genome into mRNA,so it is not infectiable.
The envelope covered with 2 spikes,Hemagglutinin and Neuraminidase. The H to bind neuraminic,sialic acid to initiate infection.N-ase degrades the protective layer of mucus.
The rapid changing variations of H and N are very hazardous because the inhibition about that very difficult is.