![]() ![]() I had earlier last May posted a Song "ci", Yue Fei's "The River All Red". Future work should explore the infectivity of aerosolized virus.This poem is a 曲 "qu" or song of the 元 Yuan Dynasty which is akin to 詞 "ci" or song of the 宋 Song Dynasty made up of long and short lines. Our results indicate that room ventilation, open space, sanitization of protective apparel, and proper use and disinfection of toilet areas can effectively limit the concentration of SARS-CoV-2 RNA in aerosols. Although we have not established the infectivity of the virus detected in these hospital areas, we propose that SARS-CoV-2 may have the potential to be transmitted through aerosols. We found that some medical staff areas initially had high concentrations of viral RNA with aerosol size distributions that showed peaks in the submicrometre and/or supermicrometre regions however, these levels were reduced to undetectable levels after implementation of rigorous sanitization procedures. Levels of airborne SARS-CoV-2 RNA in the most public areas was undetectable, except in two areas that were prone to crowding this increase was possibly due to individuals infected with SARS-CoV-2 in the crowd. The concentration of SARS-CoV-2 RNA in aerosols that was detected in isolation wards and ventilated patient rooms was very low, but it was higher in the toilet areas used by the patients. Here we investigated the aerodynamic nature of SARS-CoV-2 by measuring viral RNA in aerosols in different areas of two Wuhan hospitals during the outbreak of COVID-19 in February and March 2020. Although it is clear that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is transmitted through human respiratory droplets and direct contact, the potential for aerosol transmission is poorly understood 1-3. ongoing outbreak of coronavirus disease 2019 (COVID-19) has spread rapidly on a global scale. 10 State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, P. 9 Shanghai Environmental Monitoring Center, Shanghai, P. 8 School of Public Health, Key Laboratory of Public Health Safety of the Ministry of Education and Key Laboratory of Health Technology Assessment of the Ministry of Health, Fudan University, Shanghai, P. 7 JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, P.1 State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, P. 6 School of Public Health, Key Laboratory of Public Health Safety of the Ministry of Education and Key Laboratory of Health Technology Assessment of the Ministry of Health, Fudan University, Shanghai, P.5 Shanghai Environmental Monitoring Center, Shanghai, P.4 Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Hong Kong, P. 3 State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, P. 2 Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Hong Kong, P.1 State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, P.
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