摘要
目的分析一起诺如病毒引起的学校感染性腹泻暴发性疫情的流行病学特征及可能的危险因素,为制定预防控制措施提供科学依据。方法采用现场流行病学调查收集病例情况和可能的传播途径等信息,采集相关标本进行PCR核酸检测,采用1∶1匹配病例对照研究方法探索可能的危险因素。结果共报告59例病例,罹患率19.72‰,主要集中在10月16~17日。男女性别比1.19∶1;病例集中在四（1）班和五（1）班,占总病例数的55.93%。3份病例肛拭子和2份呕吐物检出诺如病毒GⅡ型阳性。结论此次疫情为诺如病毒GⅡ型引起感染性腹泻的暴发疫情,密切接触为可能的传播途径。
Objective Analyze the epidemiological characteristics and risk factors of an outbreak of norovirus diarrhea occurring in a school,in order to provide basis of adopting control measures.Methods Field epidemiological methods were used to investigate the epidemic situation including suspected transmitted factors.RT-PCR was used for testing the samples from the people and environment.1∶ 1 matched case-control study method is used to explore the risk factors.Results A total of 59 individuals were involved in the epidemic that mainly occurred from October 16 ~ 17,male and female gender ratio of 1.19∶ 1,the case focused on class 4（1） and 5（1）,accounted for 55.93% of the total number of cases.5 GII genogroup norovirus positive cases were detected among 3 copies of anal swab and 2 copies of vomit in the total samples.Conclusion The epidemic was a diarrhea outbreak caused by GII norovirus.
出处
《医学动物防制》
2016年第6期653-654,657,共3页
Journal of Medical Pest Control
