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在城市地铁环境中阐明空气传播细菌群落及其潜在的致病风险

Sena Park¹, Gihan Lee¹, Keum Ju Yoon²

¹Department of Environmental Engineering, National Korea Maritime and Ocean University, Busan 49112, Republic of Korea; Interdisciplinary Major of Ocean Renewable Energy Engineering, National Korea Maritime and Ocean University, Busan 49112, Republic of Korea.

Ecotoxicology and environmental safety

|February 23, 2025

概括

分析了地铁列车和车站中的空气传播细菌. 在火车站发现了较高的细菌度,在火车和火车站有不同的社区,这可能会造成潜在的致病风险.

科学领域:

环境微生物学环境微生物学
公共卫生微生物学
城市生态学城市生态学

背景情况:

地铁对城市交通至关重要,但高乘客数量引发了对空气中的致病细菌的担忧.
评估地铁系统中空气传播细菌群体对健康的风险至关重要.

研究的目的:

调查山地铁列车和车站中的空气传播细菌群落和病原性潜力.
为了区分内部地铁 (IM) 和地铁站 (MS) 环境之间的细菌概况.

主要方法:

测量了可培养的空气总细菌 (CAB) 和葡萄球菌 (CAS) 度.
使用测序分析了细菌社区的组成.
多位序列类型 (MLST) 确定了致病细菌,包括Staphylococcus epidermidis.
PICRUSt2被用来预测感染途径.

主要成果:

地铁站 (MS) 的培养空气细菌 (CABs) 和葡萄球菌 (CAS) 度高于地铁内部 (IM) 的环境.
在IM和MS样本中观察到不同的核心细菌种群,归因于人类活动.
孤立的Staphylococcus epidermidis菌株被确定为具有四种序列类型 (ST190,ST54,ST992,ST817) 的人类病原体.
MLST结果与CAB和CAS正相关.
预计金黄色葡萄球菌感染途径在IM中比MS样本更为普遍.

结论:

城市地铁环境有着独特的空气传播细菌群体,具有致病潜力.
研究结果为制定公共卫生战略提供了基础,以制定地铁系统中微生物安全的公共卫生战略.

关键词:

空气中的细菌群体生物气溶是一种生物气溶.人类病原体的人类病原体在MLST上,我们可以看到MLST.地铁地铁地铁地铁地铁地铁地铁地铁地铁地铁

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