从食品从业人员中分离到产志贺样毒素且具侵袭力的大肠埃希菌

A Strain of Entero-SLTs-Producing and Invasive E.Coli(ESIEC) Isolated from a Personnel Engaged in Food Processing

自一食品从业人员粪便标本中，分离到１株ＥＳＩＥＣ，该菌生化反应符合大肠杆菌特性，ＩＭＶＣ反应＋＋－－，与Ｉｎｖ及ＳＬ３２ＤＮＡ探针杂交，对ＨＥｐ－２细胞呈集聚状粘附。符合ＥＳＩＥＣ的典型特征。该菌株对昆明小鼠有较强的致病性。在所检测到的２０余种抗生素中，仅对复达欣、丁按卡那、呋喃妥因敏感，为多重耐药株。

A strain of ESIEC was isolated from the stool of the personnel who was engaged in food processing.This bacterial biochemical reaction accorded with the characteristic of the E.coli IMVC reveating ++--,the DNA of this strain was hybridized with Inv and SLT 2 DNAs.The strain was also showed that it has aggregating adhesion to Hep-2 cell. Both two characteristics were consitent with ESIEC.This strain has a strong pathogenic effect in Kunming mouse.The result of antibiotics susceptibility test showed that it was only sensitive to three of the twenty antibiotics tested,they were nitrofurantoinum,amilkacin and futasin.