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首页> 外文期刊>Acta microbiologica et immunologica Hungarica: A quarterly of the Hungarian Academy of Sciences >Molecular approach and bacterial quality of drinking water of urban and rural communities in Egypt.
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Molecular approach and bacterial quality of drinking water of urban and rural communities in Egypt.

机译：埃及城市和农村社区饮用水的分子方法和细菌质量。

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摘要

Water is necessary to life so when supplied as drinking water to consumers, a satisfactory quality must be maintained. In Egypt, infectious intestinal diseases are the major cause of hospitalization in almost all regions. The purpose of this study was to evaluate the microbiological quality of treated and untreated water samples from urban and rural communities. Thirty-five samples of treated (chlorinated) water from taps, 25 samples of bottled water and 15 samples of hand pump (untreated) water collected from different cities alongside the River Nile during the winter of 2007 were bacteriologically tested for safety as drinking water. This study indicated good quality of tap water and bottled water. The untreated water samples (hand pumps) were, however, slightly contaminated by faecal coliforms, faecal enterococci, Clostridium perfringens, Salmonella and Shigella. Consequently, the consumers in the villages receiving water through hand pumps are often exposed to the risk of water-borne diseases due to inadequate treatment of the raw water. Therefore, there are guidelines necessary to protect groundwater quality. Moreover, PCR-amplified by some functional gene fragments such as dctA, dcuB, frdA, dcuS and dcuR genes of the E. coli was adapted for use as a non-cultivation-based molecular approach for detection of E. coli populations from water samples without the need for pure and identified cultures.
机译：水是生命所必需的，因此当作为饮用水提供给消费者时，必须保持令人满意的质量。在埃及，几乎所有地区的传染性肠道疾病都是住院的主要原因。这项研究的目的是评估城市和农村社区处理过的和未经处理的水样的微生物质量。对2007年冬季从尼罗河沿岸不同城市收集的35个自来水处理过的（氯化）水样本，25个瓶装水样本和15个手动泵（未处理水）样本进行了细菌学测试，以作为饮用水安全。该研究表明自来水和瓶装水的质量良好。但是，未经处理的水样（手动泵）被粪便大肠菌，粪便肠球菌，产气荚膜梭菌，沙门氏菌和志贺氏菌轻微污染。因此，由于对原水的处理不充分，通过手动泵接收水的村庄的消费者经常面临水传播疾病的风险。因此，有必要的准则来保护地下水质量。此外，通过一些功能基因片段（如大肠杆菌的dctA，dcuB，frdA，dcuS和dcuR基因）扩增的PCR适于用作基于非培养的分子方法，用于从水样中检测大肠杆菌种群无需纯洁和确定的文化。

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