摘要
目的 调查一起诺如病毒引发的急性胃肠炎聚集性疫情案例,为防控诺如病毒感染引起的急性胃肠炎疫情提供科学依据。方法 2019年3月,采用现场流行病学调查方法,收集湖州师范学院基本情况和患病学生相关信息资料,进行流行病学特征分析,采集病例的粪便标本进行实验室检测。病例定义、具体检测标准和步骤依据《感染性腹泻诊断标准》(WS 271—2007)和《诺如病毒感染暴发调查和预防控制技术指南(2015版)》。结果 自2019年3月15—20日,疫情共报告13例确诊病例,均为同班学生,男生1例,女生12例,罹患率分别为25.00%(1/4)和37.50%(12/32),差异无统计学意义(χ^(2)=2.05,P>0.05)。实验室检测采集10名病例学生肛拭子标本,检测结果均为Ⅱ型诺如病毒阳性,阳性率为100%。结论 疫情为一起Ⅱ型诺如病毒感染引发的急性胃肠炎暴发,可能是班级群体活动中存在排泄物污染传染源,经人际传播所致。建议学校加强传染病防控知识教育,提高师生防护意识和能力。
Objective To investigate an acute gastroenteritis outbreak caused by Norovirus,and to provide evidence for effective school infectious outbreak prevention and control.Methods In March 2019,basic information of Huzhou Normal University and related data of cases were collected.Epidemiological characteristics were analyzed.Anal swabs of the 10 cases were collected for laboratory detection.Case definitions,specific detection criteria and procedures were based on the Diagnostic Criteria for Infectious Diarrhea(WS 271-2007)and the Technical Guidelines for the Investigation,Prevention and Control of Outbreaks of Norovirus Infection(2015 edition).Results During March 15 to March 20,a total of 13(12 girls and 1 boy)confirmed cases were reported,all of them were from the same class,with the incidence rate being 25.00%(1/4)and 37.50%(12/32)in boys and girls,respectively.No significant sex difference was found(χ^(2)=2.05,P>0.05).Anal swab specimens of 10 students were collected from laboratory were positive for Norovirus GII and have an identity of 100%.Conclusion The gastroenteritis outbreak was deduced to be attributed to GII Norovirus infection,which are likely caused by fecal contamination through person-to-person contact.It is suggested that schools should strengthen knowledge education on the prevention and control of infectious diseases and improve the protection awareness and ability of teachers and students to protect them.
作者
殷淑琴
刘光涛
YIN Shuqin;LIU Guangtao(Clinical Department of Medical College of Huzhou Normal University,Huzhou(313000),Zhejiang Province,China;不详)
出处
《中国学校卫生》
CAS
北大核心
2023年第3期451-453,共3页
Chinese Journal of School Health
关键词
肠道病毒感染
胃肠炎
疾病暴发流行
学生
Enterovirus infections
Castroenteritis
Disease outbreaks
Students
