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目的分析2015年10月21日哈尔滨市阿城区绿波西苑小区群体性腹泻发生的原因,为预防控制水污染事件提供依据。方法采用描述性流行病学方法进行调查分析,并依据GB/T 5750.12-2006(2.1)《生活饮用水卫生标准》,采集绿波西苑小区居民生活饮用水水样进行实验室检查;采集患者排泄物进行实验室检查。结果该小区共有2 615人,累计发病37例,住院2例,实验室检测显示末梢水水样中有3份菌落总数和大肠菌群均严重超标,患者排泄物未检出致病菌。结论该腹泻事件水由于污水管网渗漏污染生活饮用水供水管网引起的细菌性感染性腹泻。
Objective To analyze the causes of mass diarrhea in Green Wave Xiyuan Community, Acheng District, Harbin on October 21, 2015 to provide the basis for prevention and control of water pollution incidents. Methods Descriptive epidemiological methods were used for investigation and analysis, and according to GB / T 5750.12-2006 (2.1) “drinking water health standards”, samples of drinking water in residents of Green Wave Xiyuan Community were collected for laboratory tests. Patients Excrement for laboratory examination. Results A total of 2 615 people were involved in this community, with a total of 37 cases and 2 hospitalizations. The laboratory tests showed that the total number of 3 colonies and coliform bacteria in the peripheral water samples exceeded the standard, and no pathogens were detected in the excrement. Conclusions Bacterial infectious diarrhea caused by diarrhea caused by leakage of sewage pipe network to domestic drinking water supply pipe network.