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分别对从福建、浙江、沈阳等地分离到的18个血清型的115株小肠结肠炎耶尔森氏菌用随机扩增多态性DNA(RAPD)方法进行了分析,将其分为22个型别.结果提示RAPD方法比血清分型方法的优点是对于追踪传染源有更高的价值.“,”The stlains of Yersinia enterocolitlca (Ye)isolated from Fujian, Zhejiang and Shenyang wereanalysed by PCR-based RAPD(randomly amplification polymorphism DNA)The results demonstrated that 115strains could be classified into 18 groups by serotying,and 22 groups by RAPD--PCR. It also showed that themethod of RAPD--PCR is better in investigating the source of infection than serotyping