2022年3月中国广东省深圳市严重急性呼吸综合征冠状病毒2通过高层建筑物垂直卫生排水管道的气溶胶传播
SARS-CoV-2 Aerosol Transmission Through Vertical Sanitary Drains in High-Rise Buildings - Shenzhen, Guangdong Province, China, March 2022.
作者信息
Lyu Keyang, Feng Siyang, Li Xia, Wang Qin, Zhao Xiaoning, Yu Shuyuan, Zheng Ping, Ji Jiajia, Chen Guomin, Liang Jing, Lan Tao, Feng Jinshu, Jiang Shuai, Lu Jianhua, Xia Tianlong, Peng Chaoqiong, Feng Tiejian, Xu Dongqun
机构信息
Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China.
Shenzhen Center for Disease Control and Prevention, Shenzhen City, Guangdong Province, China.
出版信息
China CDC Wkly. 2022 Jun 10;4(23):489-493. doi: 10.46234/ccdcw2022.108.
WHAT IS ALREADY KNOWN ABOUT THIS TOPIC?: Aerosol transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) via sanitary pipelines in high-rise buildings is possible, however, there is a lack of experimental evidence.
WHAT IS ADDED BY THIS REPORT?: The field simulation experiment confirmed the existence of a vertical aerosol transmission pathway from toilet flush-soil stack-floor drains without water seal. This report provided experimental evidence for vertical aerosol transmission of clustered outbreaks on 18 floors of a 33-story residential building.
WHAT ARE THE IMPLICATIONS FOR PUBLIC HEALTH PRACTICE?: The water seal on floor drains is a necessary barrier to prevent the risk of vertical aerosol transmission of infectious disease pathogens in buildings. It is necessary not only to have a U-shaped trap in the drainage pipe, but also to be filled with water regularly.
关于该主题已知的信息有哪些？：严重急性呼吸综合征冠状病毒2（SARS-CoV-2）通过高层建筑中的卫生管道进行气溶胶传播是可能的，然而，缺乏实验证据。
本报告补充了哪些内容？：现场模拟实验证实了从无存水弯的马桶冲水-污水立管-地漏存在垂直气溶胶传播途径。本报告为一栋33层住宅楼18层聚集性疫情的垂直气溶胶传播提供了实验证据。
对公共卫生实践有哪些启示？：地漏的存水弯是防止建筑物中传染病病原体垂直气溶胶传播风险的必要屏障。不仅排水管道要有U形存水弯，而且要定期充水。
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