北京市某中学聚集性甲型H1N1流感暴发疫情调查  

Epidemiologic study of influenza A/H1N1 outbreak in a middle school in Haidian District,Beijing

作　　者：韦懿芸[1] 郭菁[1] 华伟玉[1] 孙亚敏[1] 王江敏[1] 蔡润[1] 刘锋[1] 

机构地区：[1]北京市海淀区疾病预防控制中心,100094

出　　处：《中国学校卫生》2011年第7期809-811,共3页Chinese Journal of School Health

摘　　要：目的了解北京市海淀区某中学聚集性甲型H1N1流感暴发的流行特征,为学校甲型H1N1流感疫情的控制提供科学依据。方法收集该校甲型H1N1患者基本资料和疫情发生学校基本情况,采用描述性流行病学方法对该起疫情进行流行病学分析。结果甲型H1N1流感暴发疫情历时17 d,累计确诊109名病例,学生罹患率为5.08%(104/2 048),教师罹患率为2.23%(5/224),隐性感染者比例为7.34%(8/109);与2008年同期比较,流感样病例比例差异有统计学意义;疫情初期发病学生以初二年级学生为主,中、后期扩散至初三及其他年级;不同性别人群罹患率差异有统计学意义;病例临床特征典型;甲型H1N1流感病例占流感样病例30.95%(104/336)。结论此次疫情为一起输入性甲型H1N1流感暴发疫情。严格执行校园内的晨午检和疫情报告制度,及时隔离病人及密切接触者,积极开展健康教育和对易感人群的免疫接种,可预防和控制甲型H1N1流感疫情的发生与流行。Objective To study the epidemiological characters of an influenza A/H1N1 outbreak in a middle school in Haidian district,and to provide effective and scientific measures of respiratory diseases prevention and control in schools.Methods The data of every patient and basic information of school were collected,and epidemiological descriptive analysis was conducted in the study.Results The duration of the influenza A/H1N1 outbreak was seventeen days.One hundred and nine patients were diagnosed and the attack rate of students was 5.08%（104/2 048）,the attack rate of teachers was 2.23%（5/224） and the proportion of recessive infected patients was 7.34%（8/109）.The incidence rate of influenza likely patient of 2009 was higher than that of 2008.In the early period,most patients were grade two of junior high school,while in the middle period and the later period,most patients were grade three of junior high school.There was no obvious sexual variation in the attack rate of A/H1N1 influenza;The clinical symptoms of patients were typical.The proportions of influenza A/H1N1 patient was 30.95%（104/336） in influenza likely patients.Conclusion The first patient in this A/H1N1 influenza outbreak is infected in community.Carrying out strict morning-noon health check-up and epidemic situation reporting system,timely isolation of patients and people around patients,implementation of health propaganda and inoculation are successfully utilized in control of epidemic influenza.

关 键 词：流感病毒A型 H1N1亚型 疾病暴发流行 流行病学研究 学生 

分 类 号：R511.7[医药卫生—内科学] R181.82[医药卫生—临床医学]