摘要
目的调查深圳市某幼儿园诺如病毒感染性腹泻暴发感染病例的感染来源、传播途径。方法利用现场流行病学方法了解暴发疫情的流行病学特征,结合实验室检查结果和幼儿园的卫生状况进行分析。结果共出现15例感染性腹泻病例,全部集中在一个班级,其中男生10例、女生5例,该班级罹患率为75.0%(15/20)。检测病例肛拭子8份、粪便1份、呕吐物1份,10份样本均为诺如病毒核酸阳性,病毒序列分析结果显示本次疫情的病原体均为诺如病毒的GⅡ.3病毒株。结论本次疫情确定为一起由GⅡ.3型诺如病毒引起的感染性腹泻暴发疫情,主要通过密切接触方式传播。
Objective To identify the source of infection,route of transmission and risk factors of the outbreak cases with noroviral gastroenteritis in a kindergarten of Shenzhen.Methods The epidemiology characteristics,laboratory examinations and the sanitary conditions of kindergarten were analyzed using the field epidemiology methods.Results A total of 15 cases related to acute noroviral gastroenteritis were identified in a class,including 10 males and 5 females,with the attack rate as 75.0%(15/20).All of the 10 samples,including 8 rectal swabs,1 specimen and 1 vomitus were detected for norovirus,and all of them were positive.The sequence analysis showed that all of the pathogens belonged to genogroupⅡ.3(GⅡ.3)strains.Conclusion This was an acute gastroenteritis outbreaks causing by norovirus GⅡ.3 strains according to the epidemiology investigation.The intimate contact was the predominant way for spreading the disease.
作者
杨荣兴
张韶华
张海龙
林良强
戴传文
YANG Rong xing;ZHANG Shao hua;ZHANG Hai long;LIN Liang qiang;DAI Chuan wen(Shenzhen Center for Disease Control and Prevention,Shenzhen,Guangdong 518000;Nanshan District Center for Disease Control and Prevention,Shenzhen,Guangdong 518000,China)
出处
《热带医学杂志》
CAS
2019年第12期1561-1563,共3页
Journal of Tropical Medicine
基金
广东省医学科学技术研究基金(B2018113).
关键词
诺如病毒
感染性腹泻
密切接触
Norovirus
Acute gastroenteritis
Intimate contact
作者简介
杨荣兴(1972-),男,硕士,副主任医师,从事传染病防治、消毒与感染控制工作,E mail:705156507@qq.com
