北京市一起游学团诺如病毒感染暴发疫情的流行病学调查  

Epidemiological investigation on an outbreak of norovirus infection in a study tour in Beijing

作　　者：甄国新[1] 高彭[1] ZHEN Guo-xin;GAO Peng(Shunyi District Center for Disease Control and Prevention,Beijing 101300,China)

机构地区：[1]北京市顺义区疾病预防控制中心,101300

出　　处：《首都公共卫生》2020年第6期318-320,共3页Capital Journal of Public Health

摘　　要：目的调查一起来京游学团出现多名急性胃肠炎病例感染事件,分析引起暴发的危险因素,提出预防控制措施。方法采用描述性流行病学调查方法收集病例信息,制定病例定义,开展病例搜索,进行个案调查,分析流行病学特征。采集病例样本、剩余食物、食堂工作人员便样本和环境样本进行实验室检测。结果该起疫情共搜索到23例疑似病例,罹患率为11.3%。共采集32件样本,经检测5名病例呕吐物检出诺如病毒阳性,6名病例便样本检出诺如病毒阳性。结论此次事件是一起由诺如病毒GⅠ组和GⅡ组混合感染引起的急性胃肠炎暴发疫情。Objective To investigate the acute gastroenteritis outbreak in study tour in Beijing,analyze the risk factors of the outbreak,and put forward the prevention and control measures.Methods A descriptive epidemiological survey was used to collect case information formulate case definition,carry out case search,conduct case investigation,and analyze the epidemiological characteristics.Case samples,surplus food samples,canteen staff stool samples and environmental samples were collected for laboratory testing.Results A total of 23 suspected cases were collected in the outbreak,with an attack rate of 11.3%.A total of 32 samples were collected,of which 5 cases were positive for norovirus in vomit and 6 cases were positive for norovirus in stool samples.Conclusions The event was an outbreak of acute gastroenteritis caused by mixed infection of norovirus genotype GⅠ and genotype GⅡ.

关 键 词：诺如病毒 暴发 游学团 

分 类 号：R512.5[医药卫生—内科学] R181.81[医药卫生—临床医学]