河北省2019-2021年病毒性脑炎流行特征及相关肠道病毒基因分析
Characterization of viral encephalitis and analysis of associated enterovirus genes in Hebei Province,2019-2021
魏亚梅 1蔡亚男 1韩旭 1韩占英 1张艳波 1许永刚 1李琦1
作者信息
- 1. 河北省疾病预防控制中心病毒病防治所,河北石家庄 050021
- 折叠
摘要
目的 探讨河北省病毒性脑炎的流行特点及相关肠道病毒基因特征.方法 收集2019-2021年河北省病毒性脑炎病例血清或脑脊液标本,分别用ELISA和Real-time PCR方法检测常见病原体,对肠道病毒阳性的标本进行病毒分离及VP1区序列测定.结果 2019-2021年共报告692例病例,男女比例1.39∶1,15岁以下占97.54％,不同年龄组发病率差异有统计学意义(x2=2719.663,P＜0.001);全年均有病例散发,5-7月较多,占34.68％.肠道病毒阳性278例,检出率为40.17％,检出最多的是单纯疱疹病毒(37.71％)、肠道病毒(16.50％)、腮腺炎病毒(15.15％).序列分析显示河北省病毒性脑炎相关肠道病毒主要是埃可病毒33型、30型、9型和柯萨奇病毒B组5型(Coxsackievirus B5,CVB5),与近年我国分离株亲缘关系较近.结论 河北省病毒性脑炎具有一定的人群及季节特征,病原体存在多样性.病毒性脑炎相关肠道病毒存在多个基因型,未发现明显变异.
Abstract
Objective To exploring the epidemiological characteristics of viral encephalitis and related enterovirus gene characteristics in Hebei province.Methods The serum or cerebrospinal fluid samples from acute viral en-cephalitis cases in Hebei were collected from 2019 to 2021.ELISA and Real-time PCR were used to detect com-mon pathogens,virus isolation and VP1 region sequencing were performed in enterovirus positive samples.Results A total of 692 cases were collected in 2019-2021,with male to female ratio of 1.39∶1.97.54％of the cases was younger than 15 years old.There were statistically significant differences in incidence rates between different age groups(x2=2 719.663,P＜0.001).The cases were distributed throughout the year,with a relatively higher number of cases from May to July,accounted for 34.68％.The positive rate was 40.17％with 278 enterovirus positive cases.The most common pathogens were herpes simplex virus(37.71％),enterovirus(16.50％)and mumps virus(15.15％).Sequence analysis showed that the associated enteroviruses were mainly Echovirus 33(Echo33),Echo30,Echo9 and Cox-sackievirus B5(CVB5),which were closely related to the isolates in recent years in China.Conclusion Viral en-cephalitis in Hebei was characterized by certain population,seasonal characteristics and pathogen diversity.There were several genotypes of viral encephalitis associated enteroviruses,and no obvious variations had been found.
关键词
病毒性脑炎/流行特征/病原学/肠道病毒Key words
Viral encephalitis/Epidemiological characteristic/Etiology/Enterovirus引用本文复制引用
基金项目
河北省医学科学研究课题计划(20220047)
河北省医学科学研究课题计划(20201351)
出版年
2024
NETL
NSTL
万方数据