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首页> 外文期刊>Infection and immunity >Relationship among enterotoxigenic phenotypes, serotypes, and sources of strains in enterotoxigenic Escherichia coli.
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Relationship among enterotoxigenic phenotypes, serotypes, and sources of strains in enterotoxigenic Escherichia coli.

机译：产肠毒素大肠埃希氏菌中肠毒素表型，血清型和菌株来源之间的关系。

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The relationship among O groups, O:H serotypes and enterotoxigenic phenotypes was examined in 76 Escherichia coli strains isolated in Brazil from different sources. Of the 17 heat-labile and -stable enterotoxin (LT/ST)-producing strains whose O antigens were identified, 15 belonged to serotypes O6:H16 (7 strains), O63:H- (5 strains), and O139:H28 (3 strains). All 11 ST strains were in group OO128PAC, which was represented by four O:H serotypes. The 23 LT strains with the O antigen identified were distributed among serotypes of 14 O groups. Colonization factor CFA/I was not found in any of the LT strains, but it was found in six LT/ST and three ST strains. On the whole, each E. coli O:H serotype had a particular fermentation pattern. LT/ST as well as ST strains were all isolated from patients with diarrhea, whereas LT strains were isolated from patients with diarrhea, normal children, food, and river water.
机译：在巴西分离自不同来源的76株大肠杆菌中，检查了O组，O：H血清型和产肠毒素表型之间的关系。在鉴定出O抗原的17种热不稳定且稳定的产肠毒素（LT / ST）菌株中，有15种属于血清型O6：H16（7个菌株），O63：H-（5个菌株）和O139：H28（ 3株）。所有11个ST菌株都在OO128PAC组中，其由四种O：H血清型代表。确定的23种带有O抗原的LT菌株分布在14个O组的血清型中。在任何LT菌株中均未发现定植因子CFA / I，但在6株LT / ST和3株ST菌株中均发现了定植因子CFA / I。总体而言，每种大肠杆菌O：H血清型都有特定的发酵模式。 LT / ST和ST菌株均从腹泻患者中分离，而LT菌株则从腹泻患者，正常儿童，食物和河水中分离。

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