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学校的空气净化器和呼吸道感染:基于流行病学,环境和分子数据的建模研究

Nicolas Banholzer^1,2, Philipp Jent^2,3, Pascal Bittel^2,4

¹Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland.

Open forum infectious diseases

|April 26, 2024

概括

便携式HEPA空气净化器显著降低了学校的颗粒度. 虽然它们没有影响二氧化碳水平,但它们显示出降低学生呼吸道感染和咳的潜力.

科学领域:

环境健康环境健康
流行病学流行病学
传染病控制和控制传染病

背景情况:

在中学教室中评估了便携式HEPA空气过器 (空气净化器) 的现实有效性.
在2022/2023冬季7周内采用多次测量方法.

研究的目的:

评估空气净化剂对颗粒度,二氧化碳水平,呼吸道感染缺失,咳频率和学校病毒检测的影响.
为了在交叉车设计中使用空气净化器和不使用空气净化器来比较这些指标.

主要方法:

在两个瑞士中学班进行了为期7周的交叉研究,涉及38名学生 (13-15岁).
收集的环境 (CO2,粒子计数),流行病学 (缺席),音频 (咳) 和分子 (生物气溶,唾液) 数据.
利用贝叶斯模型分析感染风险,并比较使用空气净化剂和不使用空气净化剂的结果.

主要成果:

使用空气净化器的平均颗粒度下降了77%,但二氧化碳水平保持不变.
由于呼吸道感染的缺勤人数从22人减少到13人,感染风险降低的概率为91% (相对风险为0.73).
咳频率倾向于下降 (93%的概率),而非SARS-CoV-2病毒很少在生物气溶或过器上被检测到,尽管它们存在于唾液中.

结论:

便携式HEPA空气净化器通过降低颗粒度,有效地改善了学校的室内空气质量.
空气清洁剂在减少呼吸道感染和咳等症状方面显示出潜在的益处.
建议对空气清洁器实施的传输动态和成本效益进行进一步的研究.

关键词:

空气净化器的空气净化器在空中传输的空中传输.分子检测分子检测检测呼吸道病毒的病毒.在学校学校学校学校学校学校.

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