2015-2017年宜昌市诺如病毒感染聚集性疫情流行特征与病原学分析  

Analysis on epidemiological and aetiological characteristics of cluster epidemic of norovirus infection in Yichang from 2015 to 2017

作　　者：余云芳[1] 周攀 李清元[1] 马静[1] 余枫华[1] 张谨 YU Yun-fang;ZHOU Pan;LI Qing-yuan;MA Jing;YU Feng-hua;ZHANG Jin(Yichang Center for Disease Control and Prevention,Yichang ,Hubei 443005;The Third People's Hospital of Yichang , Yichang ,Hubei 443005,China)

机构地区：[1]宜昌市疾病预防控制中心,湖北宜昌443005 [2]宜昌市第三人民医院,湖北宜昌443005

出　　处：《热带医学杂志》2019年第1期107-108,112,共3页Journal of Tropical Medicine

摘　　要：目的分析宜昌市诺如病毒感染聚集性疫情的流行病学特征。方法收集2015-2017年宜昌市报告并现场采样的诺如病毒感染聚集性疫情的实验室资料进行分析。结果宜昌市2015-2017共报告27起聚集性疫情,2015、2016、2017年分别发生3、5、19起。疫情发生场所为托幼机构和中小学,时间主要分布在冬春季(10月-次年3月),共25起,占92.59%。共采集标本131份,其中检出阳性49份,GⅡ型检出43份,占87.76%,其次是GⅠ和GⅡ混合感染型。结论宜昌市诺如病毒感染聚集性疫情呈逐年上升趋势,GⅡ型为主要病原体,其次是GⅠ和GⅡ混合感染型。Objective To analyze and summarize the epidemiological characteristics of the cluster epidemic of norovirus infection in Yichang city. Method Reports of laboratory test with on-site sampling of the cluster epidemic of norovirus infection in Yichang city from 2015 to 2017 were collected and analyzed. Results In the past three years, Yichang city reported a total of 27 cluster epidemic outbreaks,all of which were child care institutions and primary and secondary schools. The outbreaks occurred manily in winter and spring( October-March), a total of 25 cases, accounting for 92.59%.131 samples were collected and analyzed. Among them, 49 were positive, with 43 of GⅡ type, accounting for 87.76%,followed by mixed infection of GⅠ and GⅡ types. Conclusion The epidemic situation of norovirus infection in Yichang city was increasing year by year;GⅡ type was the main pathogen, followed by GⅠ and GⅡ mixed types of infection.

关 键 词：诺如病毒 聚集性疫情 GⅡ型 

分 类 号：R373[医药卫生—病原生物学]