产肠毒素的大肠杆菌O128菌株不仅限于ac亚组，还属于ab和abc亚组。
Enterotoxigenic strains of Escherichia coli O128 are not restricted to subgroup ac but also belong to subgroups ab and abc.
作者信息
Thomas L V, Scotland S M, Rowe B
出版信息
Infect Immun. 1987 May;55(5):1336-7. doi: 10.1128/iai.55.5.1336-1337.1987.
Ninety strains of Escherichia coli O128 isolated in many different countries were examined. The majority (77 strains) belonged to the antigenic subgroup O128ab, and 41 of these strains produced heat-stable enterotoxin (ST), heat-labile enterotoxin (LT), or both. Eight strains were of the antigenic subgroup O128ac; six produced ST only, and two were nontoxigenic. Five strains were of the antigenic subgroup O128abc; two produced ST and LT, and three were nontoxigenic. Ten of the strains studied produced Vero cytotoxin, and all belonged to the antigenic subgroup O128ab. It was concluded that, contrary to the report of Guth et al. (B. E. C. Guth, M. L. M. Silva, I. C. A. Scaletsky, M. R. F. Toledo, and L. R. Trabulsi, Infect. Immun. 47:338-340, 1985), enterotoxigenic strains of E. coli O128 are not restricted to subgroup ac but also belong to the most common subgroup, ab.
对从许多不同国家分离出的90株大肠杆菌O128进行了检测。大多数（77株）属于抗原亚群O128ab，其中41株产生热稳定肠毒素（ST）、热不稳定肠毒素（LT）或两者皆有。8株属于抗原亚群O128ac；6株仅产生ST，2株不产生毒素。5株属于抗原亚群O128abc；2株产生ST和LT，3株不产生毒素。所研究的菌株中有10株产生志贺毒素，且均属于抗原亚群O128ab。得出的结论是，与Guth等人的报告（B. E. C. Guth、M. L. M. Silva、I. C. A. Scaletsky、M. R. F. Toledo和L. R. Trabulsi，《感染与免疫》47:338 - 340，1985年）相反，产肠毒素的大肠杆菌O128菌株不仅限于ac亚群，也属于最常见的ab亚群。
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