【摘要】 本文对我国各地分离的小肠结肠炎耶氏菌的毒力特征进行测定,所有毒力株除个别外,均有VW抗原、Vi抗原和毒力因子,它们的检测结果一致。有毒株还有一条40～50MDa的质粒带,即所谓毒力质粒,但有此毒力质粒的菌株并非都是有毒株,视其有否特异性外膜蛋白(约200KDa)而定。自凝性也是检测耶氏菌毒力的一种方法,但其敏感性与特异性均不及VW抗原测定。因此测定菌株毒力,以VW抗原、Vi抗原和毒力因子测定最特异而敏感,特别后两种方法简单、易行、可靠,可在基层单位推广使用。更多还原

【Abstract】 This paper reports that the different serotypes strains of Yersihia enterocolitica isolated from 12 orovinces in China were examined for their virulent character.The virulence strains of Yersinia enterocolitica had been detectad in serotypes O : 3,O : 9 and O : 15.These virulence strains all Contained (VW)antigen,Vi antigen,Specific outer membrane protein and virulence plasmids ,and were virulent in mice. Except some strains in virulence strains agglutination factor also were positive.The strains which had the presence of VW antigen,Vi antigen or virulence factor all were virulent. The three methods are reliable and convenient in detecting virulence of Yersinia enterocolitica.更多还原