一起早教机构诺如病毒胃肠炎聚集性疫情的流行病学调查分析

Epidemiological Survey and Analysis of a Cluster of Norovirus Gastroenteritis Cases in an Early Childhood Education Institution

目的分析一起早教机构诺如病毒胃肠炎聚集性疫情的流行病学情况。方法对成都市某早教机构的呕吐腹泻症状幼儿进行分析,采用现场流行现学调查的方法描述疫情的发生、发展过程,以及进场实验室检测。采用Excel软件建立数据库,并进行率和构成比计算。结果对此次疫情发生在该机构疑似病例9例,经实验室检测,2例患儿、1例发病班级处置呕吐物的保育老师及1例厨师肛拭子结果均为诺如病毒阳性。结论诺如病毒具有高度传染性和快速传播能力,重点机构应加强出勤人员健康询问,加强筛查监测范围,对呕吐物或腹泻物重点消毒。

Objective To analyze the epidemiology of an outbreak of norovirus gastroenteritis in an early childhood institution.Methods Children with vomiting and diarrhoea symptoms in an early childhood institution in Chengdu were analyzed,and the occurrence and development of the outbreak was described using on-site epidemiological investigations,as well as laboratory tests.Excel software was used to create a database and to calculate rates and composition ratios.Results Nine suspected cases of the epidemic occurred in this institution.Laboratory tests showed that the results of anal swabs from 2 children,1 teachers who dealt with vomit in the sick class and 1 chefs were positive for norovirus.Conclusion Norovirus is highly contagious and spread rapidly.Key institutions should strengthen health questioning of attendance,enhance the scope of screening and monitoring,and focus on disinfection of vomitus or diarrhoea.