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目的分析江门市2013-2014年诺如病毒暴发疫情流行病学特征,为制定预防控制策略提供科学依据。方法采用描述性流行病学方法,对诺如病毒胃肠炎暴发疫情资料进行分析。结果共报告8宗诺如病毒胃肠炎暴发疫情,报告病例478例,总罹患率为1.88%(478/25 463),男女性别比为1.29∶1。8宗暴发疫情均发生在学校,62.50%的暴发个案发生在小学,11月至次年1月是发病高峰,食源性传播和接触传播为主要传播途径。结论中小学等人群聚集的单位易发生诺如病毒胃肠炎疫情,在高发月份应加强预防控制措施。
Objective To analyze the epidemiological characteristics of Norovirus outbreak in Jiangmen City from 2013 to 2014 and provide a scientific basis for the development of prevention and control strategies. Methods Descriptive epidemiological methods were used to analyze the outbreak data of norovirus gastroenteritis outbreaks. Results A total of 8 cases of norovirus gastroenteritis outbreaks were reported. A total of 478 reported cases were reported, with a total attack rate of 1.88% (478/25 463) and a male / female ratio of 1.29: 1.8. All outbreaks occurred in schools and 62.50 % Of outbreaks occurred in primary schools, from November to January next year is the peak incidence of foodborne and contact transmission as the main route of transmission. Conclusions Primary and secondary schools and other groups gathered units prone to norovirus gastroenteritis epidemic situation, in the high incidence of months should strengthen prevention and control measures.