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不同血清型及不同来源的肠出血性大肠杆菌菌株中的山梨醇阴性表型。

Sorbitol-negative phenotype among enterohemorrhagic Escherichia coli strains of different serotypes and from different sources.

作者信息

Ojeda A, Prado V, Martinez J, Arellano C, Borczyk A, Johnson W, Lior H, Levine M M

机构信息

Department of Microbiology, Faculty of Medicine, University of Chile, Santiago.

出版信息

J Clin Microbiol. 1995 Aug;33(8):2199-201. doi: 10.1128/jcm.33.8.2199-2201.1995.

Abstract

Enterohemorrhagic Escherichia coli (EHEC) strains detected with DNA probes (for virulence plasmid and Shiga-like toxins) from subjects with hemolytic-uremic syndrome (n = 19) or diarrhea (n = 41) or asymptomatic carriers (n = 29) were examined for sorbitol fermentability, as were enterotoxigenic (n = 40), enteropathogenic (n = 40), and enteroinvasive (n = 40) E. coli and urinary tract infection (n = 40) strains and normal flora E. coli strains (n = 40). Sorbitol negativity was common only in EHEC, particularly among strains from severe clinical infections. All 19 EHEC strains from patients with hemolytic-uremic syndrome, irrespective of O:H serotype or Shiga-like toxin genotype, were sorbitol negative.

摘要

使用DNA探针(针对毒力质粒和志贺样毒素)从溶血尿毒综合征患者(n = 19)、腹泻患者(n = 41)或无症状携带者(n = 29)中检测出的肠出血性大肠杆菌(EHEC)菌株,以及产肠毒素大肠杆菌(n = 40)、肠致病性大肠杆菌(n = 40)、肠侵袭性大肠杆菌(n = 40)、尿路感染菌株(n = 40)和正常菌群大肠杆菌菌株(n = 40),均接受了山梨醇发酵能力检测。山梨醇阴性仅在肠出血性大肠杆菌中常见,尤其是在严重临床感染的菌株中。所有19株来自溶血尿毒综合征患者的肠出血性大肠杆菌菌株,无论O:H血清型或志贺样毒素基因型如何,均为山梨醇阴性。

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