医院环境中的SARS-CoV-2病毒对环境的生物污染
M Espejo Mambié1,2,3,4, D San Jose-Saras3,4,5, C Bischofberger Valdés3,4
1Universidad de Alcalá, Facultad de Medicina y Ciencias de la Salud, Departamento de Biología de Sistemas, Alcalá de Henares, Spain.
Current research in microbial sciences
|February 25, 2025
概括
在医院内的表面和空气中检测到SARS-CoV-2,特别是在高度接触的表面和最近出现症状的患者附近. 重症监护病房显示环境污染的风险更高.
科学领域:
- 环境微生物学环境微生物学
- 传染病流行病学 传染病流行病学
- 医院感染控制 医院感染控制
背景情况:
- 建立生物材料的环境隔离对于了解传播途径至关重要.
- 不一致的方法阻碍了关于SARS-CoV-2空气传播的最终结论.
- 关于空气传播的SARS-CoV-2传播的科学辩论仍在继续.
研究的目的:
- 在COVID-19大流行期间调查医院内的空气和表面的SARS-CoV-2污染.
- 评估病毒环境污染的程度和位置.
- 确定与生物污染风险增加相关的因素.
主要方法:
- 在急诊,住院和重症监护病房进行空气和表面采样.
- 对所有采集的样本采用一致的采样方法.
- 记录了临床,环境和特定位置的参数.
主要成果:
- 总共收集了234个样本 (160个表面样本,74个空气样本);6.84%的测试结果呈阳性.
- 阳性样本包括13个表面样本和3个空气样本.
- 高接触面显示了最高的污染率 (12/13阳性).
- 在最近出现症状 (<5天) 的患者2米以内发现了阳性空气样本.
- 更高的污染风险与患者的依赖性,温度升高和重症监护室有关.
结论:
- 在医院环境中,SARS-CoV-2可以存在于表面和空气中.
- 高接触面和接近症状患者的距离是关键的关注点.
- 重症监护病房是病毒传播风险较高的环境.
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