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Aerial Transmission of the SARS-CoV-2 Virus through Environmental E-Cigarette Aerosols: Implications for Public Policies

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  • Roberto A. Sussman

    (Institute of Nuclear Sciences, National Autonomous University of Mexico, 04510 Mexico City, Mexico)

  • Eliana Golberstein

    (Myriad Pharmaceuticals Ltd., 1010 Auckland, New Zealand)

  • Riccardo Polosa

    (Center of Excellence for the Acceleration of Harm Reduction (CoEHAR), University of Catania, 95123 Catania, Italy)

Abstract

We discuss the implications of possible contagion of COVID-19 through e-cigarette aerosol (ECA) for prevention and mitigation strategies during the current pandemic. This is a relevant issue when millions of vapers (and smokers) must remain under indoor confinement and/or share public outdoor spaces with non-users. The fact that the respiratory flow associated with vaping is visible (as opposed to other respiratory activities) clearly delineates a safety distance of 1–2 m along the exhaled jet to prevent direct exposure. Vaping is a relatively infrequent and intermittent respiratory activity for which we infer a mean emission rate of 79.82 droplets per puff (6–200, standard deviation 74.66) comparable to mouth breathing, it adds into shared indoor spaces (home and restaurant scenarios) a 1% extra risk of indirect COVID-19 contagion with respect to a “control case” of existing unavoidable risk from continuous breathing. As a comparative reference, this added relative risk increases to 44–176% for speaking 6–24 min per hour and 260% for coughing every 2 min. Mechanical ventilation decreases absolute emission levels but keeps the same relative risks. As long as direct exposure to the visible exhaled jet is avoided, wearing of face masks effectively protects bystanders and keeps risk estimates very low. As a consequence, protection from possible COVID-19 contagion through vaping emissions does not require extra interventions besides the standard recommendations to the general population: keeping a social separation distance of 2 m and wearing of face masks.

Suggested Citation

  • Roberto A. Sussman & Eliana Golberstein & Riccardo Polosa, 2021. "Aerial Transmission of the SARS-CoV-2 Virus through Environmental E-Cigarette Aerosols: Implications for Public Policies," IJERPH, MDPI, vol. 18(4), pages 1-16, February.
  • Handle: RePEc:gam:jijerp:v:18:y:2021:i:4:p:1437-:d:492758
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    References listed on IDEAS

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    1. Luca Fiorillo & Gabriele Cervino & Marco Matarese & Cesare D’Amico & Giovanni Surace & Valeria Paduano & Maria Teresa Fiorillo & Antonio Moschella & Alessia La Bruna & Giovanni Luca Romano & Riccardo , 2020. "COVID-19 Surface Persistence: A Recent Data Summary and Its Importance for Medical and Dental Settings," IJERPH, MDPI, vol. 17(9), pages 1-10, April.
    2. Solomon Hsiang & Daniel Allen & Sébastien Annan-Phan & Kendon Bell & Ian Bolliger & Trinetta Chong & Hannah Druckenmiller & Luna Yue Huang & Andrew Hultgren & Emma Krasovich & Peiley Lau & Jaecheol Le, 2020. "The effect of large-scale anti-contagion policies on the COVID-19 pandemic," Nature, Nature, vol. 584(7820), pages 262-267, August.
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    Cited by:

    1. Gonzaga, M.N. & de Oliveira, M.M. & Atman, A.P.F., 2023. "Immunity Agent-Based Model (IABM) for epidemiological systems," Chaos, Solitons & Fractals, Elsevier, vol. 176(C).

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    More about this item

    Keywords

    SARS-CoV-2; COVID19; vaping; smoking; facemasks; risk analysis;
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