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SARS-CoV-2 spillover into hospital outdoor environments.
Zhang, Dayi; Zhang, Xian; Yang, Yunfeng; Huang, Xia; Jiang, Jingkun; Li, Miao; Ling, Haibo; Li, Jing; Liu, Yi; Li, Guanghe; Li, Weiwei; Yi, Chuan; Zhang, Ting; Jiang, Yongzhong; Xiong, Yan; He, Zhenyu; Wang, Xinzi; Deng, Songqiang; Zhao, Peng; Qu, Jiuhui.
  • Zhang D; School of Environment, Tsinghua University, Beijing, 100084, PR China.
  • Zhang X; School of Environment, Tsinghua University, Beijing, 100084, PR China.
  • Yang Y; School of Environment, Tsinghua University, Beijing, 100084, PR China.
  • Huang X; School of Environment, Tsinghua University, Beijing, 100084, PR China.
  • Jiang J; School of Environment, Tsinghua University, Beijing, 100084, PR China.
  • Li M; School of Environment, Tsinghua University, Beijing, 100084, PR China.
  • Ling H; Hubei Academy of Environmental Sciences, Wuhan, 430072, PR China.
  • Li J; Hubei Center for Disease Control and Prevention, Wuhan, 430079, PR China.
  • Liu Y; School of Environment, Tsinghua University, Beijing, 100084, PR China.
  • Li G; School of Environment, Tsinghua University, Beijing, 100084, PR China.
  • Li W; Hubei Academy of Environmental Sciences, Wuhan, 430072, PR China.
  • Yi C; Hubei Academy of Environmental Sciences, Wuhan, 430072, PR China.
  • Zhang T; Hubei Center for Disease Control and Prevention, Wuhan, 430079, PR China.
  • Jiang Y; Hubei Center for Disease Control and Prevention, Wuhan, 430079, PR China.
  • Xiong Y; Wuhan Center for Control & Prevention, Wuhan, 430015, PR China.
  • He Z; Wuhan Center for Control & Prevention, Wuhan, 430015, PR China.
  • Wang X; School of Environment, Tsinghua University, Beijing, 100084, PR China.
  • Deng S; Research Institute for Environmental Innovation (Tsinghua-Suzhou), Suzhou, 215163, PR China.
  • Zhao P; Research Institute for Environmental Innovation (Tsinghua-Suzhou), Suzhou, 215163, PR China.
  • Qu J; School of Environment, Tsinghua University, Beijing, 100084, PR China.
J Hazard Mater Lett ; 2: 100027, 2021 Nov.
Article in English | MEDLINE | ID: covidwho-1233433
ABSTRACT
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.
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Full text: Available Collection: International databases Database: MEDLINE Type of study: Prognostic study Language: English Journal: J Hazard Mater Lett Year: 2021 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Type of study: Prognostic study Language: English Journal: J Hazard Mater Lett Year: 2021 Document Type: Article