Diagnostic criteria and principles of management for food poisoning of enteropathogenic eschrichia coli 病原性大肠艾希氏菌食物中毒诊断标准及处理原则
2.
Schubert et al reported that hpi was found in 93 % eaggec , 27 % enteroinvasive e . coli , 5 % enteropathogenic e . coli and enterotoxigenic e . coli 在不同类致泻性大肠杆菌中， hpi毒力岛在eaggec中高频分布的原因，目前也不清楚。
3.
To dress the question if other virulence gene were present in this kind of strains , 152 of 436 irp2 - hybridized strains were re - confirmed and selected for this study . the virulence genes or putative virulence genes detected by pcr or hybridization include heat stable toxin ( st ) & heat labile toxin ( lt ) for enterotoxigenic e . coli ( etec ) , invasive plasmid antigen b ( ipab ) for enteroinvasive e . coli ( eiec ) , epec adherence factor ( eaf ) , epec secretion protein c ( espc ) for enteropathogenic e . coli ( epec ) , hemolysin ( hlya ) and shiga toxins ( sltl and slt2 ) for enterohaemorrhagic e . coli ( ehec ) and eaggec probe for entero - aggregative e . coli ( eaggec ) . the prra and yc73 genes of pathogenicity associated island ( pai ) of urepathogenic e . coli ( upec ) and " o " island 28 ( rtx 615 ) gene was also detected , the later was a newly discovered putative pathogenicity island in e . coli o157 : h7 为探讨携带小肠结肠炎耶尔森氏菌的hpi毒力岛的大肠杆菌是否具有其他已知的毒力基因，选取82株由原位杂交和pcr方法初筛irp2阳性的大肠杆菌菌株，进行在致泻性大肠杆菌的25个毒力基因的检测，包括肠产毒性大肠杆菌的热稳定毒素st和热不稳定毒素lt ，肠侵袭性大肠杆菌的侵袭蛋白b基因ipab ，肠致病性大肠杆菌的eaf 、 espc基因，肠出血性大肠杆菌的溶血素hly 、志贺毒素1 ( slt1 ) 、志贺毒素2 ( slt2 )基因，肠集聚性大肠杆菌的eaggec探针，以及在泌尿道致病性大肠杆菌和o157 ： h7大肠杆菌中新发现的毒力岛基因。
