For 5 strains,SLT1,SLT2,eaeA and lily toxic genes were detected,4 strains carried SLT2,eae and Hly genes,1 strain carried SLT1,SLT2,eae and Hly genes.

• 5株O157:H7菌株中,4株带有SLT2、eae和H ly 3种毒力基因,1株带有SLT1、SLT2、eae和H ly 4种毒力基因。