浙江省学校诺如病毒胃肠炎暴发疫情流行病学分析

发布时间：2018-10-25 16:27

【摘要】：目的了解浙江省学校近年诺如病毒感染暴发疫情的流行特征和趋势变化,为预防控制学校疾病暴发提供参考。方法在浙江省突发公共卫生事件网络报告系统内选择2011年1月至2015年1月浙江省学校诺如病毒胃肠炎暴发疫情资料,分析疫情的时间、地区、人群分布、传播途径和病毒基因型特征,并与2004—2010年浙江省及同期全国平均水平进行比较。结果 2011年1月—2015年1月浙江省学校诺如病毒胃肠炎暴发疫情共20起,累计病例1 929例,年龄集中在15~19岁,发生场所以高中和小学居多。1 929例病例的男、女比例为1.13∶1。19起为基因GⅡ型感染,1起为基因GⅠ和GⅡ型混合感染。6起为饮用受污染的桶装水,6起为使用受污染的食堂餐具,3起为密切接触病例或接触病例呕吐物污染的物品,2起可能为食物污染,另有3起原因未明。结论浙江省学校诺如病毒胃肠炎暴发疫情主要发生在冬春季,大多经受污染的桶装水、食物或餐具传播。
[Abstract]:Objective to investigate the epidemic characteristics and trend of norovirus infection outbreak in schools in Zhejiang Province in recent years, and to provide reference for prevention and control of school disease outbreaks. Methods data of the outbreak of norovirus gastroenteritis in schools in Zhejiang Province from January 2011 to January 2015 were selected in the network reporting system of public health emergencies in Zhejiang Province. The time, region and population distribution of the outbreak were analyzed. The transmission routes and genotypes of the virus were compared with the average levels of Zhejiang Province and the whole country in the same period from 2004 to 2010. Results from January 2011 to January 2015, there were 20 outbreaks of norovirus gastroenteritis in schools in Zhejiang Province, with a total of 1,929 cases, aged 1519 years. The proportion of women was 1.13: 1.19 cases of gene G 鈪，

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