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首页> 外文期刊>Journal of Clinical Microbiology >Prevalence of Diarrheagenic Escherichia coli in Finns with or without Diarrhea during a Round-the-World Trip
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Prevalence of Diarrheagenic Escherichia coli in Finns with or without Diarrhea during a Round-the-World Trip

机译：环游世界中有或没有腹泻的芬兰人中腹泻性大肠杆菌的患病率

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The incidence of diarrhea and the prevalence of bacterial enteropathogens, viruses, and parasites in feces of subjects with and without diarrhea were evaluated in 204 Finns traveling round the world (from Finland to China, Malaysia, Australia, Fiji, Chile, and Brazil and back to Finland). Special emphasis was placed on the finding of diarrheagenic Escherichia coli (enterotoxigenic, enteropathogenic, Shiga toxin-producing, and enteroaggregative strains) by PCR from growth on primary culture plates. From the PCR-positive samples, corresponding strains were isolated, confirmed as E. coli, and O serotyped. Of all the subjects, 37% experienced a total of 90 episodes of diarrhea. No adenoviruses or rotaviruses were detected, and findings of parasites were insignificant. In contrast, enteropathogenic bacteria were present in 62% of the 65 diarrheal and in 33% of the 127 nondiarrheal samples (P < 0.001); diarrheagenic E. coli strains were found in 35 and 26% of these, respectively (not statistically significant). As a single pathogen, E. coli was found in 20 and 24% of samples (not significant). Of all diarrheagenic E. coli strains, enteropathogenic strains were the most commonly found independently of the clinical picture of the subjects, whereas Salmonella enterica as a single pathogen was the most common non-E. coli organism found in diarrheal samples. Multiple bacterial pathogens were found 10 times more commonly in diarrheal than in nondiarrheal samples (20 versus 2%; P < 0.001).
机译：在全球204位芬兰人中（从芬兰到中国，马来西亚，澳大利亚，斐济，智利和巴西，然后再返回到芬兰）。特别强调了通过原代培养板上的PCR反应，发现具有腹泻性的大肠杆菌（肠毒素，肠致病，志贺毒素产生性和肠聚集性菌株）。从PCR阳性样品中分离出相应的菌株，确认为Em。大肠杆菌，并进行O型分型。在所有受试者中，有37％的人总共经历了90次腹泻。未检测到腺病毒或轮状病毒，并且寄生虫的发现也无关紧要。相比之下，在65个腹泻样品中有62％和127个非腹泻样品中有33％存在肠道致病菌（ P <0.001）;引起腹泻的大肠杆菌分别在其中的35％和26％中发现了大肠杆菌菌株（无统计学意义）。作为单一病原体， E。在20％和24％的样本中发现了大肠埃希菌（不显着）。在所有引起腹泻的大肠杆菌中。大肠杆菌，肠致病菌是最独立于受试者临床表现的病原体，而沙门氏菌作为单一病原体是最常见的非 E。腹泻样品中发现有大肠杆菌。腹泻中发现多种细菌性病原体的频率比非腹泻样品高10倍（20比2％; P <0.001）。

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