一起山洪暴发污染水源引起菌痢暴发疫情调查  

An outbreak of bacillary dysentery caused by flash floods polluted water

作　　者：李伟[1] 马秀兰[1] 李志红[1] 高文征[1] 

机构地区：[1]西宁市疾病预防控制中心传染病防治科,西宁810007

出　　处：《现代预防医学》2012年第13期3203-3204,共2页Modern Preventive Medicine

摘　　要：目的了解某村细菌性痢疾暴发特点和规律,确定感染来源及传播途径,采取相应措施,控制疫情。方法对该村全体村民进行排查,对病人及密切接触者进行流行病学调查,同时开展水源及外环境调查,采集饮用水及病人粪便进行实验室检测。结果该村共发生菌痢病人82例,罹患率为19.52%,经流行病学调查发现患者均引用同一水源,外出不饮用此水源者不患病,实验室检测饮用水大肠杆菌严重超标,从病人粪便中检出宋内氏菌,外环境调查:出现病人前两天该地区普降几十年不遇的暴雨,雨水冲毁了蓄水池防护墙体,使源头水受到污染。结论本次疫情是由山洪爆发污染水源所致。OBJECTIVE To investigate the characteristic and the rule of the bacillary dysentery that erupt in village,find the evidence of the source of infection and the way of infection,to take the corresponding measures to control the bacillary dysentery outbreak.METHODS Carried out epidemiological investigations in villagers,included the close contacts,meanwhile investigate water and environments,collected the drinking water and patients＇ stool for laboratory test.RESULTS There were 82 patients with bacillary dysentery,the attack rate was 19.52%.Epidemiological survey found that all the patients used the same water source,person who didn＇t use this source were not sick.Laboratory test of drinking water showed E.coli far exceeded,from the stool of patients detected out Sonne dysentery.External environmental investigation found that before the outbreak,the heavy storm which not seen for decades,destroyed the protective wall,so that water source was contaminated.CONCLUSION This outbreak is caused by the flash floods contaminated water sources.

关 键 词：村民 饮用水 细菌性菌痢 流行病学调查 

分 类 号：R181.81[医药卫生—流行病学]