在商用飞机内部表面上SARS-CoV-2的稳定性与对有效控制措施的影响
Kenrie P Y Hui1,2, Alex W H Chin1,2, John Ehret3
1School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam HKG, Hong Kong SAR, China.
概括
在飞机表面的SARS-CoV-2 (严重急性呼吸系统综合征冠状病毒2) 存活率有限,感染病毒在4小时内减少90%. 缓解策略是足够的,表面传播不是主要的传播途径.
科学领域:
- 航空安全航空安全
- 传染病传播 传染病传播
- 表面微生物学 表面微生物学
背景情况:
- COVID-19大流行对航空业产生了重大影响,引发了人们对飞机机内病毒传播的担忧.
- 一个关键的问题是SARS-CoV-2在飞机内部表面的稳定性和传播潜力.
研究的目的:
- 为了评估SARS-CoV-2菌株在各种内部飞机表面的稳定性.
- 评估抗病毒和表面涂料在缓解病毒持久性的有效性.
主要方法:
- 利用TCID50 (50%组织培养感染剂量) 试验来确定病毒的稳定性.
- 随着时间的推移,在常见的飞机内部接触面上测试了SARS-CoV-2的生存率.
主要成果:
- 与陆地材料相比,SARS-CoV-2在飞机表面的稳定性明显较低,在4小时内可培养病毒减少了90%.
- 抗病毒涂层是有效的,但随着定期清洁而减弱,在56天后变得无效.
- 新的SARS-CoV-2菌株没有在飞机表面发展出更强的弹性.
结论:
- 目前在飞机内部表面对SARS-CoV-2的缓解策略被认为是足够的.
- 超过三年的流行病学数据表明,表面传播不是SARS-CoV-2在飞机中传播的主要途径.
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