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首页> 外文期刊>African Journal of Biotechnology >Occurrence of Escherichia coli O157 in a river used for fresh produce irrigation in Nigeria
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Occurrence of Escherichia coli O157 in a river used for fresh produce irrigation in Nigeria

机译：尼日利亚新鲜农产品灌溉河中大肠杆菌O157的出现

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Concerns about the persistence of?Escherichia coli?O157 in irrigation waters and its transmission to fresh produce makes investigation of irrigation waters imperative. The prevalence of this pathogen and seasonal levels of water quality parameters in Kubanni River were studied, using standard methods, over a 10-month period. Detection rate for?E. coli?O157 confirmed by slide agglutination was 2.1%. Faecal coliform counts (FCC) exceeded acceptable limits and was significantly higher in the dry season than during the rainy season (p<0.05). Remarkably, nitrate level was significantly higher in the rainy season than dry season (p<0.05). A significant (p<0.05) correlation was established between FCC and each of nitrate (r = 0.25), biochemical oxygen demand (r = 0.51) and electrical conductivity (r = 0.55). It was concluded that the Kubanni River represents a potential public health risk, being unfit for fresh produce irrigation. Perhaps, this is the first report on the isolation of?E. coli?O157 from water sources in Nigeria.
机译：对大肠杆菌在灌溉水中的持久性及其向新鲜农产品的传播的担忧使对灌溉水的研究势在必行。使用标准方法，在10个月的时间内研究了该病原体的流行情况和库班尼河的水质参数的季节性水平。 E的检出率。经玻片凝集确认的大肠杆菌O157为2.1％。粪大肠菌群计数（FCC）超过了可接受的范围，在旱季明显高于雨季（p <0.05）。值得注意的是，雨季的硝酸盐水平明显高于旱季（p <0.05）。在FCC与硝酸盐（r = 0.25），生化需氧量（r = 0.51）和电导率（r = 0.55）之间建立了显着（p <0.05）相关性。结论是，库班尼河存在潜在的公共卫生风险，不适合新鲜农产品灌溉。也许，这是关于隔离的第一份报告。来自尼日利亚水源的O157大肠杆菌。

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