论文部分内容阅读
产生VT毒素的0157:H7与腹泻、出血性结肠炎、溶血性尿毒综合征的暴发及散发有关。O157:H7感染的流行病学资料还不全,散发病例中的微生物来源往往难以确定,为此,许多研究者推出了遗传型和表现型分型方案。目前已知的噬菌体型有66种,但大多数菌株归属于少数几型,因此在调查中价值有限。测定基因组中限制性片段长度多态性(RFLP)的脉冲凝胶电泳(PFGE)作
0157: H7, which produces VT toxin, is associated with outbreaks and dissemination of diarrhea, hemorrhagic colitis, hemolytic uremic syndrome. O157: Epidemiological data on H7 infection are not complete, and the source of the microorganisms in the sporadic cases is often difficult to determine. Therefore, many researchers have introduced genotyping and phenotyping schemes. Currently there are 66 phage types, but most of the strains belong to a few types, so the value of the survey is limited. Determination of genomic restriction fragment length polymorphism (RFLP) by pulse gel electrophoresis (PFGE) as