摘要
目的调查南昌市某小学出现的以呕吐、腹泻为主的感染性胃肠炎的感染来源、传播途径和危险因素,为有效防控疫情提供理论依据,为类似疫情现场处置提供参考。方法按照病例定义开展病例搜索,对病例进行回顾性调查,描述其三间分布特征,调查可疑因素。采集病例的呕吐物、肛试样本;运用RT-PCR法对样本进行诺如病毒核酸检测。结果此次疫情累计发生诺如病毒感染34例,历时4天,总罹患率为3.24%,采集病例呕吐物及肛试样本共13份,4份GⅡ型诺如病毒核酸阳性。结论本次事件是一起由诺如病毒感染引起的暴发疫情,切断传播途径是防控的关键。
OBJECTIVE To investigate the infection sources,transmission routes and risk factors of infectious gastroenteritis mainly caused by vomiting and diarrhea in a primary school in Nanchang,so as to provide theoretical basis for effective prevention and control of the epidemic situation,and provide experiences for the on-site treatment of similar epidemic situation.METHODS C.ase search was conducted according to case definition,retrospective investigation was conducted on cases.Distribution characteristics of the three cases were described,and suspicious factors were investigated.Vomit and anal samples were collected.Norovirus nucleic acid was detected by RT-PCR.RESULTS The outbreak had occurred,such as virus infectious diarrhea in 34 cases.The outbreak lasted for four days,and the morbidity was 3.24%.It collected 13 cases of vomit and anus test sample,and 4 samples were positive CONCLUSION This case was an outbreak caused by norovirus infection.Cutting off the transmission route was the key to prevention and control.
作者
吴景文
周坤
程文娟
王武宽
涂俊凌
WU Jing-wen;ZHOU Kun;CHENG Wen-juan(The Collaboration Unit for Field Epidemiology of State Key Laboratory for Infectious Disease Prevention and Control,Jiangxi Provincal key Laboratory of Animal-origin and Vector-borne Diseases,Nanchang Center for Disease Control and Pre-vention,Nanchang,330038,China)
出处
《中国初级卫生保健》
2020年第11期87-89,共3页
Chinese Primary Health Care
关键词
诺如病毒
暴发
学校
调查
norovirus
outbreak
elementary school
investigation
