于秋燕, 徐淑慧, 吕晔. 济南市乙型流感暴发疫情调查分析[J]. 疾病监测, 2007, 22(1): 48-49. DOI: 10.3784/j.issn.1003-9961.2007.1.48
引用本文: 于秋燕, 徐淑慧, 吕晔. 济南市乙型流感暴发疫情调查分析[J]. 疾病监测, 2007, 22(1): 48-49. DOI: 10.3784/j.issn.1003-9961.2007.1.48
YU Qiu-yan, XU Shu-hui, LV Ye . Analysis of the survey on epidemic status of the outbreak of influenza B in Jinan City[J]. Disease Surveillance, 2007, 22(1): 48-49. DOI: 10.3784/j.issn.1003-9961.2007.1.48
Citation: YU Qiu-yan, XU Shu-hui, LV Ye . Analysis of the survey on epidemic status of the outbreak of influenza B in Jinan City[J]. Disease Surveillance, 2007, 22(1): 48-49. DOI: 10.3784/j.issn.1003-9961.2007.1.48

济南市乙型流感暴发疫情调查分析

Analysis of the survey on epidemic status of the outbreak of influenza B in Jinan City

  • 摘要: 目的 分析济南市6起乙型流感暴发疫情的流行病学特征,对疫情控制措施做出评价.方法 用描述性流行病学方法对6起暴发疫情进行分析,采集患者鼻咽拭子进行流感病毒分离鉴定.结果 6起流感暴发疫情均发生于6所农村中小学,发生病例498人,平均罹患率为7.97%.疫情发生在2006年2~4月,以12岁以下小学生罹患率较高.以发热、咳嗽、流涕、头痛为主要症状.病程一般3~5d.采集患者鼻咽拭子117份,分离到维多利亚(victoria)乙型流感病毒33株.阳性率为28.21%.结论 6起流感样病例暴发疫情均为维多利亚(victoria)乙型流感暴发.加强学校晨检.严格隔离传染源,是及时发现、预防和控制流感疫情的重要措施.

     

    Abstract: Objective The present study was conducted to analyze the epidemiological characteris- tics of the epidemic status of the six outbreaks of influenza B in Jinan City and evaluate the control measures against the epidemic status. Methods Descriptive epidemiologic methods were used to ana- lyze the six outbreaks, and the nasopharyngeal swabs were collected to conduct the influenza virus isolation and identification. Results 6 influenza outbreaks, with 498 cases in all, occurred in six pri- mary and high schools in rural areas during February and April 2006, and the average attack rate was 7.97%, especially higher among the students below 12 years old. The main clinical symptoms were fever, cough, rhinorrhea and headache, the course of diseases often lasted for 3 ̄5 days. 117 samples of the nasopharyngeal swabs were collected. 33 strains of influenza B viruses were isolated and identi- fied, and the positive rate was 28.21%. Conclusions 6 outbreaks of influenza- like disease were all influenza B. Strengthening the morning examination in schools and strict isolation of the source of in- fection are significant measures to timely discover, prevent and control influenza.

     

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