目的研究某社区部分居民出现胃肠道症状的原因,探讨饮用水被污染后的有效控制措施。方法收集该社区出现症状居民流行病学、食品卫生学和实验室检验等资料,采用描述流行病学分析。结果小区水被污染,所采集的水标本经检测,菌落总数、总大肠菌群均不符合《生活饮用水》GB5749.12-2006要求。结论生活饮用水被污染致群体性胃肠道感染,采取合理、有效的控制措施可避免事故的蔓延。 Objective To study the causes of gastrointestinal symptoms in some residents of a certain community and to explore the effective control measures after the drinking water is polluted. Methods Epidemiology, food hygiene and laboratory tests of residents in the community were collected and used to describe the epidemiological analysis. Results The water in the plot was polluted. The collected water samples were tested. The total number of colonies and the total coliforms did not meet the requirements of “drinking water” GB5749.12-2006. Conclusion Drinking water contaminated group gastrointestinal tract infection, take reasonable and effective control measures to prevent the spread of accidents.