Etiopathogenisis 2.Theory of infection O bacterial infection(esp streptococcus) ● fungal infection bacteria fungI (streptococcus, superantigen)(yeast fungus) lymphocytes activated alternative complement pathway clonal proliferation functional disorder of immune systemEtiopathogenisis 2.Theory of infection ⚫bacterial infection(esp.streptococcus) ⚫fungal infection bacteria fungi (streptococcus、superantigen) (yeast fungus) lymphocytes activated alternative complement pathway clonal proliferation functional disorder of immune system