SARS-CoV-2 Aerosol Transmission Through Vertical Sanitary Drains in High-Rise Buildings - Shenzhen, Guangdong Province, China, March 2022.

作者：Keyang Lyu, Siyang Feng, Xia Li, Qin Wang, Xiaoning Zhao, Shuyuan Yu, Ping Zheng, Jiajia Ji, Guomin Chen, Jing Liang, Tao Lan, Jinshu Feng, Shuai Jiang, Jianhua Lu, Tian‐Long Xia, Chaoqiong Peng, Tiejian Feng, Dongqun Xu · 发表于：PubMed · 年份：2022 · DOI：10.46234/ccdcw2022.108 · 被引用次数：9 · 研究领域：Infection Control and Ventilation、Indoor Air Quality and Microbial Exposure、COVID-19 impact on air quality

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.