Objective To compare the virulent characteristic of hypervirulent klebsiella pneumonia( hv KP) with classic klebsiella pneumonia( c KP) and to investigate the effect of KP on the expression of inflammatory cytokines of R PE cells. Methods Totally 8 strains of hv KP and 8 strains of c KP were collected and divided into hv KP group and c KP group. The virulence characteristics of KP were evaluated and compared by string test,PC R amplification of regulator of mucoid phenotype gene A( rmp A) gene test,antiseru...