一起小学甲型流感暴发疫情的流行病学调查与分析
Epidemiological investigation and analysis of an influenza a outbreak in a primary school
张敏 1陆芳芳 1张佳煊 2倪秀贤1
作者信息
- 1. 深圳市宝安区公共卫生服务中心,广东 深圳 518103
- 2. 中山大学公共卫生学院,广东 广州 510082
- 折叠
摘要
目的 对一起小学甲型流感暴发疫情开展流行病学调查与分析,为提升学校流感防控工作提供指导依据.方法 通过现场流行病学调查,病例对照研究分析疫情特征,采集患病学生咽拭子样本进行病原学检测.结果 共搜索到96名流感样病例,病例离校居家隔离天数的中位数为3d,均数为3.4 d,短于平均潜伏期(4.65 d).采集的15份咽拭子中,检出7份H1N1流感病毒核酸阳性,3份H3亚型流感病毒核酸阳性.结论 此次暴发疫情由甲型流感病毒引起,学校及时发现病例并规范处置.
Abstract
Objective This study was aimed at conducting an epidemiological investigation analysis of an outbreak of influenza A in a primary school,to provide guidance for the prevention and control of influenza in schools.Methods Through a field epidemiological investigation,throat swab samples of affected students were collected for pathogen detection and case-control study analysis of the epidemic characteristics.Results A total of 96 cases of influenza-like illness were identified.The median isolation period was 3 days,and the average was 3.4 days,which was shorter than the average incuba-tion period(4.65 days).Of 15 throat swabs collected,seven samples were positive for H1N1 influenza virus,and three sam-ples were positive for H3 subtype influenza virus.Conclusions The outbreak was caused by influenza A virus.Schools should detect cases in a timely manner,standardize management,and strengthen monitoring of resuming classes and respira-tory isolation measures,such as wearing masks,in the event of influenza outbreak.
关键词
甲型流感/暴发/流行病学调查Key words
Influenza A/Outbreak/Epidemiological investigation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据