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一起农村小学甲型H3N2流感暴发流行的调查分析
引用本文:王福春.一起农村小学甲型H3N2流感暴发流行的调查分析[J].微生物学免疫学进展,2014(2):43-45.
作者姓名:王福春
作者单位:广西靖西县疾病预防控制中心,广西靖西533899
基金项目:致谢参加现场调查工作的还有谢继杰、黄文先、蒙雪芹、王波、赵华聪等同志,百色市疾病预防控制中心检验科在检验工作方面给予了大力支持,在此一并致谢.
摘    要:目的了解甲型H3N2流感暴发流行特征,为制定预防措施提供依据。方法对和温村小学239名学生流感发病及流感疫苗接种情况进行调查,对发病者逐一个案调查登记,采集患者咽拭子标本送百色市疾病预防控制中心实验室检测确诊。结果该校学生流感发病33例,发病率为13.81%,学前班及1~6年级共7个班均有病例发生,发病班级为100%。发病者中,男性18例,女性15例,男女性别比为1.2∶1,男女发病率分别为14.52%(18/124)、13.04%(15/115),(χ2=0.11,P0.05),男女发病率差异无统计学意义。患者咽拭子标本5人份,经实验室检测甲型H3N2流感病毒核酸阳性率为100%。结论该校学生无流感疫苗免疫接种史,易感人群积累,是本次甲型H3N2流感暴发流行的根本原因。应在每年秋冬流感流行季节前一个月,加强中小学校学生流感疫苗接种,提高易感人群免疫力,防止甲型H3N2流感扩散蔓延。

关 键 词:甲型H3N2  流感  农村小学校  暴发疫情

Investigation for an outbreak of influenza A H3N2 in a rural primary school
WANG Fu-chun.Investigation for an outbreak of influenza A H3N2 in a rural primary school[J].Progress In Microbiology and Immunology,2014(2):43-45.
Authors:WANG Fu-chun
Institution:WANG Fu-chun (Jingxi County Center for Disease Control and Prevention, Jingxi 533899, Guangxi Province, China)
Abstract:Objective To understand characteristics for an outbreak of influenza A H3 N2 and provide a basis on preventive measures. Methods Two hundred and thirty nine pupils were investigated and recorded on influenza A H3N2 vaccine inoculation in the primary school of Hewen villige. On the purpose of making diagnosis, the sampling of throat swab were transferred and detected into Baise Center for Disease Control and Prevention. Results Thirty three cases were diagnosed and with an incidence 13.81%. There were cases occurred in every class of all seven classes (1-6 grades and a pre-school class) , the incidence of case occurred classes was 100%. There were cases for 18 males and 15 females, respectively, the ratio is 1.2 : 1, incidences were 14.52% (18/124) and 13.04% ( 15/115), respectively, X^2 =0.11 ,P〉0.05), and it had no statistical significance. The sampling test showed that seven specimens were all positive for virus nucleic acid from influenza A H3N2. Conclusion The major cause of this break was that the pupils had no immunization history of influenza vaccine before, and the susceptible persons were in acumullated. The influenza vaccination should be conducted one month before the annual influnza season in autumn and winter, strengthened on influenza vaccination in pupils and students in the primary and secondary schools, and improved immunity for susceptible population against influenza A H3N2 spreading.
Keywords:Influenza A H3N2  Influenza  Rural primary school  Outbreak
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