SARS-CoV-2 spillover into hospital outdoor environments

被引:23
|
作者
Zhang, Dayi [1 ]
Zhang, Xian [1 ]
Yang, Yunfeng [1 ]
Huang, Xia [1 ]
Jiang, Jingkun [1 ]
Li, Miao [1 ]
Ling, Haibo [2 ]
Li, Jing [3 ]
Liu, Yi [1 ]
Li, Guanghe [1 ]
Li, Weiwei [2 ]
Yi, Chuan [2 ]
Zhang, Ting [3 ]
Jiang, Yongzhong [3 ]
Xiong, Yan [4 ]
He, Zhenyu [4 ]
Wang, Xinzi [1 ]
Deng, Songqiang [5 ]
Zhao, Peng [5 ]
Qu, Jiuhui [1 ,6 ]
机构
[1] Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China
[2] Hubei Acad Environm Sci, Wuhan 430072, Peoples R China
[3] Hubei Ctr Dis Control & Prevent, Wuhan 430079, Peoples R China
[4] Wuhan Ctr Control & Prevent, Wuhan 430015, Peoples R China
[5] Res Inst Environm Innovat Tsinghua Suzhou, Suzhou 215163, Peoples R China
[6] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China
基金
国家自然科学基金重大项目;
关键词
SARS-CoV-2; Spillover; Outdoor environment; CORONAVIRUS; SURVIVAL; VIRUS; CONTAMINATION; DISINFECTION; EBOLA;
D O I
10.1016/j.hazl.2021.100027
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Facing the ongoing coronavirus infectious disease-2019 (COVID-19) pandemic, many studies focus on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in indoor environment, on solid surface or in wastewater. It remains unclear whether SARS-CoV-2 can spill over into outdoor environments and impose transmission risks to surrounding people and communities. In this study, we investigated the presence of SARS-CoV-2 by measuring viral RNA in 118 samples from outdoor environment of three hospitals in Wuhan. We detected SARS-CoV-2 in soils (205- 550 copies/g), aerosols (285-1,130 copies/m3) and wastewaters (255-18,744 copies/L) in locations close to hospital departments receiving COVID-19 patients or in wastewater treatment sectors. These findings revealed a significant viral spillover in hospital outdoor environments that was possibly caused by respiratory droplets from patients or aerosolized particles from wastewater containing SARS-CoV-2. In contrast, SARS-CoV-2 was not detected in other areas or on surfaces with regular implemented disinfection. Soils may behave as viral warehouse through deposition and serve as a secondary source spreading SARS-CoV-2 for a prolonged time. For the first time, our findings demonstrate that there are high-risk areas out of expectation in hospital outdoor environments to spread SARS-CoV-2, calling for sealing of wastewater treatment unit and complete sanitation to prevent COVID-19 transmission risks.
引用
收藏
页数:6
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