It is well recognized that Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) virus could be spread through touch and large droplets. However, we may have under-estimated the disease transmission by small droplets or aerosols that contain SARS-CoV-2 virus. Social distancing in public transport vehicles, such as airplanes, is not feasible. It is also not possible to wear masks in restaurant. This paper recommended wearing masks in airplanes and use partition screens in the middle of a table in a restaurant to reduce the infection caused by SARS-CoV-2 virus. Advanced ventilation systems, such as personalized ventilation and displacement ventilation, are strongly recommended for transport vehicles and buildings.
L Bourouiba (2020). Turbulent gas clouds and respiratory pathogen emissions: Potential implications for reducing transmission of COVID-19. JAMA, 323(18): 1837–1838 doi:10.1001/jama.2020.4756
2
Q Chen, L R Glicksman (2003). System Performance Evaluation and Design Guidelines for Displacement Ventilation. New York: ASHRAE
3
Q Chen, J J McDevitt, J K Gupta, B W Jones, S Mazumdar, S B Poussou, J D Spengler (2012). Infectious disease transmission in airliner cabins. National Air Transportation Center of Excellence for Research in the Intermodal Transport Environment (RITE), Report No. RITE-ACER-CoE-2012–01
Y Liu, Z Ning, Y Chen, M Guo, Y L Liu, N K Gali, L Sun, Y S Duan, J Cai, D Westerdahl, X J Liu, K Xu, K F Ho, H D Kan, Q Y Fu, K Lan (2020). Aerodynamic analysis of SARS-CoV-2 in two Wuhan hospitals. Nature, doi: 10.1038/s41586-020-2271-3
7
S J Olsen, H L Chang, T Y Y Cheung, A F Y Tang, T L Fisk, S P L Ooi, H W Kuo, D D S Jiang, K T Chen, J Lando, K H Hsu, T J Chen, S F Dowell (2003). Transmission of the severe acute respiratory syndrome on aircraft. New England Journal of Medicine, 349(25): 2416–2422 https://doi.org/10.1056/NEJMoa031349
8
Z Shi, D Lai, Q Chen (2020). Performance evaluation and design guide for a coupled displacement-ventilation and passive-chilled-beam system. Energy and Building, 208: 109654 https://doi.org/10.1016/j.enbuild.2019.109654
9
N van Doremalen, T Bushmaker, D H Morris, , M G Holbrook, A Gamble, B N Williamson, A Tamin, J L Harcourt, N J Thornburg, S I Gerber, J O Lloyd-Smith, E de Wit, V J Munster (2020). Aerosol and surface stability of SARS-CoV-2 as compared with SARS-CoV-1. New England Journal of Medicine, 382(16): 1564–1567 https://doi.org/10.1056/NEJMc2004973
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R You, Y Zhang, X Zhao, C H Lin, D Wei, J Liu, Q Chen (2018). An innovative personalized displacement ventilation system for airliner cabins. Building and Environment, 137: 41–50 https://doi.org/10.1016/j.buildenv.2018.03.057
