【摘要】 目的研究桐乡市诺如病毒引起的急性胃肠炎疫情的流行特征及流行因素,指导今后诺如病毒疫情的防控。方法对2014年-2016年桐乡市发生并经实验室确诊的诺如病毒引起的急性胃肠炎疫情资料进行分析,分析疫情的时间、人群分布、传播途径和病毒基因型特征。结果 2014年-2016年共报告诺如病毒急性胃肠炎疫情13起,报告病例162例,其中实验室确诊45例,无重症和死亡病例,波及4 182人,总罹患率为3.87%,均由诺如病毒GⅡ型引起。结论诺如病毒GⅡ型已成为学校急性胃肠炎疫情的重要病原,疫情全年均可发生,但寒冷季节呈现高发,对呕吐物处理不当是造成疾病传播的关键因素。更多还原

【Abstract】 Objective To study the epidemic characteristics and epidemic factors of the outbreak of acute gastroenteritis caused by norovirus in Tongxiang,so as to guide the prevention and control of the disease in the future. Methods The data of laboratory-confirmed acute gastroenteritis outbreak caused by norovirus in Tongxiang from 2014 to 2016,the epidemic time,population distribution,transmission and virus genotypes were conducted for analysis. Results 13 acute gastroenteritis outbreaks were reported from 2014 to 2016,and 162 cases were reported,including laboratory confirmed 45 cases,without severe cases and deaths. a total of 4 182 people were infected,the total average incidence rate was 3. 87%,which were all caused by G Ⅱ.Conclusion Norovirus G Ⅱ has become an important pathogen of acute gastroenteritis outbreak in school,which happens in the four seasons,but up-trends during the cold seasons,improper vomit processing is the main factor to the spread of this disease.更多还原