韩亚凤, 宋丹. 天津市河北区某小学流行性感冒暴发调查[J]. 上海预防医学, 2022, 34(3): 239-241. DOI: 10.19428/j.cnki.sjpm.2022.21252
引用本文: 韩亚凤, 宋丹. 天津市河北区某小学流行性感冒暴发调查[J]. 上海预防医学, 2022, 34(3): 239-241. DOI: 10.19428/j.cnki.sjpm.2022.21252
HAN Yafeng, SONG Dan. Investigation on influenza outbreak in a primary school in Hebei District of Tianjin[J]. Shanghai Journal of Preventive Medicine, 2022, 34(3): 239-241. DOI: 10.19428/j.cnki.sjpm.2022.21252
Citation: HAN Yafeng, SONG Dan. Investigation on influenza outbreak in a primary school in Hebei District of Tianjin[J]. Shanghai Journal of Preventive Medicine, 2022, 34(3): 239-241. DOI: 10.19428/j.cnki.sjpm.2022.21252

天津市河北区某小学流行性感冒暴发调查

Investigation on influenza outbreak in a primary school in Hebei District of Tianjin

  • 摘要:
    目的 分析天津市河北区某小学一起流行性感冒(以下简称“流感”)暴发疫情的流行病学特征和暴发的原因,为流感暴发疫情防控提供科学依据。
    方法 根据《流感样病例暴发疫情处置指南(2012年版)》采集患者咽拭子标本进行流感病毒检测。采用描述流行病学方法,对所有流感暴发疫情个案调查资料进行统计学分析。
    结果 该次暴发疫情共发病94例,总罹患率为18.40%,共波及12个班级,病例分布在一年级(1~9班)和三年级(7、8、10班)。流感罹患率最高的为一年级2班[47.50%(19/40)],其次为一年级1班[30.95%(13/42)],流感罹患率最低的为三年级8班和三年级10班,均为[2.86%(1/35)]。采集11名发病学生的咽拭子标本,6份为乙型流感病毒核酸阳性。
    结论 发病学生年龄较小,均未接种过流感疫苗,存在带病上课现象,导致此次疫情波及范围较大;通过加强晨午检、追踪因病缺课,严格隔离传染源,开窗通风、预防性消毒等措施,此次暴发疫情得到了控制。

     

    Abstract:
    Objective To determine the epidemiological characteristics and causes of an influenza outbreak in a primary school in Hebei District, Tianjin, and provide scientific evidence for the prevention and control of influenza outbreaks.
    Methods According to the Guidelines for the Management of Influenza Like Outbreaks (2012 Edition), and the throat swabs of patients with influenza were collected for influenza virus detection. Descriptive epidemiological method was used to analyze the data in the outbreak.
    Results A total of 94 cases were identified in this influenza outbreak, with an overall incidence rate of 18.40%. A total of 12 classes were involved. The cases were distributed in Grade 1 (classes 1-9) and Grade 3 (classes 7, 8 and 10). The highest morbidity rate was 47.50% (19/40) in Class 2 Grade 1, followed by 30.95% (13/42) in Class 1 Grade 1, and the lowest was 2.86% (1/35) in Class 8 Grade 3 and Class 10 Grade 3. The throat swab samples were collected in 11 students, of which 6 tested positive for influenza B virus.
    Conclusion Students with influenza were younger, had not been vaccinated against influenza, and attended classes with illness, which led to the further spread of the epidemic. The outbreak has been finally controlled through strengthening morning and afternoon inspection, tracking non-attendant students due to illness, strictly isolating the source of infection, opening windows for ventilation, and conducting preventive disinfection.

     

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