For 42 strains,SLT1,SLT2,eaeA and Hly toxic genes were detected,85.71% of the strain were,80.56% of them carried SLT2,eaeA and Hly genes simultaneously.

• 对 4 2株菌株进行了SLT1、SLT2、eaeA和Hly四种毒力基因的检测 ,85 71%25的菌株毒力基因阳性 ,且以同时带有SLT2、eaeA和Hly三种毒力基因最为常见 ,占带毒菌株的 80 5 6%25。