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. 2021 Mar:289:114033.
doi: 10.1016/j.jviromet.2020.114033. Epub 2020 Dec 4.

SARS-CoV-2 and aerosols-Arguing over the evidence

Julian W Tang  1
Affiliations

SARS-CoV-2 and aerosols-Arguing over the evidence

Julian W Tang. J Virol Methods. 2021 Mar.

Abstract

This Commentary discusses various aspects around the controversial issue of SARSCoV-2 and aerosol transmission, highlighting certain counter arguments and explaining why they are invalid.

Keywords: Aerosol; Airborne infection control; Coronavirus disease 2019; Covid-19; Epidemiology; SARS-CoV-2; Severe acute respiratory syndrome coronavirus-2; Transmission.

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Figures

Fig. 1
Fig. 1
A schlieren image of two people talking approximately 1 m apart (adapted and annotated by the author, from reference (Tang et al. (2011))). Note the exhaled airflows produced by both individuals (indicated by dotted red lines), which quickly move across the gap between them, can be inhaled by the opposing individual. Essentially: ‘If I can smell the garlic on your breath, then I must be inhaling some of your exhaled air – and any viruses carried within it’. Full schlieren/shadowgraph videos of talking breathing, coughing, sneezing, laughing and singing are available at: https://www.youtube.com/watch?v=MaYcjyU6XT8&list=PL8pE_CuHoXJXZExcWwk_0tsqjT2Ydwsxg&index=1.
See this image and copyright information in PMC

References

    1. Cheng V.C., Wong S., Chuang V.W., et al. The role of community-wide wearing of face mask for control of coronavirus disease 2019 (COVID-19) epidemic due to SARS-CoV-2. J. Infect. 2020;81(1):107–114. - PMC - PubMed
    1. Imperial College London COVID-19 Response Team . 2020. Report 4: Severity of 2019-novel Coronavirus (nCoV)https://www.imperial.ac.uk/media/imperial-college/medicine/mrc-gida/2020... 10 February 2020.
    1. Long Q.X., Tang X.J., Shi Q.L., et al. Clinical and immunological assessment of asymptomatic SARS-CoV-2 infections. Nat. Med. 2020 doi: 10.1038/s41591-020-0965-6. Jun 18. - DOI - PubMed
    1. Makison Booth C., Clayton M., Crook B., Gawn J.M. Effectiveness of surgical masks against influenza bioaerosols. J. Hosp. Infect. 2013;84(1):22–26. doi: 10.1016/j.jhin.2013.02.007. - DOI - PubMed
    1. Morawska L., Milton D.K. It is time to address airborne transmission of COVID-19. Clin. Infect. Dis. 2020 doi: 10.1093/cid/ciaa939. 6 July. - DOI - PMC - PubMed