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Aerosol Dispersion During Different Phonatory Tasks in Amateur Singers

  • Laila Ava Hermann
    Affiliations
    Division of Phoniatrics and Pediatric Audiology, Department of Otorhinolaryngology, Munich University Hospital (LMU), Munich, Germany
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  • Bogac Tur
    Affiliations
    Division of Phoniatrics and Pediatric Audiology, Department of Otorhinolaryngology, Head & Neck Surgery, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
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  • Marie Christine Köberlein
    Affiliations
    Division of Phoniatrics and Pediatric Audiology, Department of Otorhinolaryngology, Munich University Hospital (LMU), Munich, Germany
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  • Sophia Gantner
    Affiliations
    Division of Phoniatrics and Pediatric Audiology, Department of Otorhinolaryngology, Munich University Hospital (LMU), Munich, Germany
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  • Caroline Westphalen
    Affiliations
    Division of Phoniatrics and Pediatric Audiology, Department of Otorhinolaryngology, Munich University Hospital (LMU), Munich, Germany
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  • Tobias Benthaus
    Affiliations
    Institute and Clinic for Occupational, Social and Environmental Medicine, Munich University Hospital (LMU), Munich, Germany
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  • Michael Döllinger
    Affiliations
    Division of Phoniatrics and Pediatric Audiology, Department of Otorhinolaryngology, Head & Neck Surgery, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
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  • Stefan Kniesburges
    Affiliations
    Division of Phoniatrics and Pediatric Audiology, Department of Otorhinolaryngology, Head & Neck Surgery, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
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  • Matthias Echternach
    Correspondence
    Address correspondence and reprint requests to Matthias Echternach, Division of Phoniatrics and Pediatric Audiology, Department of Otorhinolaryngology, Munich University Hospital (LMU), Marchioninistr. 15, 81377 Munich, Germany.
    Affiliations
    Division of Phoniatrics and Pediatric Audiology, Department of Otorhinolaryngology, Munich University Hospital (LMU), Munich, Germany
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Published:December 26, 2021DOI:https://doi.org/10.1016/j.jvoice.2021.11.005
Aerosol Dispersion During Different Phonatory Tasks in Amateur Singers
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      Summary

      Introduction

      Due to increased aerosol generation during singing, choir rehearsals were widely prohibited in the course of the CoVID-19 pandemic. Most studies on aerosol generation and dispersion focus on professional singers. However, it has not been clarified if these data are also representative for amateur singers.

      Methods

      Nine non-professional singers (four male, five female) were asked to perform five tasks; speaking (T+), singing a text softly (MT-) and loudly (MT+), singing on the vowel [ə] (M+) and singing with a N95 mask (MT+N95). Before performing the tasks, the singers were asked to inhale 0.5 L vapor produced by an e-cigarette consisting of the basic liquid. The spread of the exhaled vapor was recorded in all three dimensions by high-definition cameras and the impulse dispersion was detected as a function of time.

      Results

      Regarding the median dispersion to the front, all tasks showed comparable distances from 0.69 m to 0.82 m at the end of the tasks. However, the maximum aerosol dispersion showed a larger variety among different subjects or tasks, respectively. Especially in the M+ task a maximum distance of 1.96 m to the front was reached by a single subject. Although singing with a N95 mask resulted in a slightly increased median dispersion to the front, the maximum dispersion was decreased from 1.47 m (MT+) to 1.04 m (MT+N95).

      Conclusion

      The maximum dispersion distance to the front of 1.96 m at the end of the M+ task and 1.47 m at the end of the MT+ task showed higher values in comparison to professional singers. Differences in phonation, articulation and mouth opening could lead to greater impulse dispersion. Singing in loud phonation with a N95 mask reduced the maximum impulse dispersion to the front to 1.04 m. Taking all results into consideration, a slightly larger safety distance should be necessary for non-professional singers.

      Key Words

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      References

      1. Viertes Gesetz zum Schutz der Bevölkerung bei einer epidemischen Lage von nationaler Tragweite. In: 2021:802-807.

        View in Article
        • Hale T
        • Angrist N
        • Goldszmidt R
        • et al.
        A global panel database of pandemic policies (Oxford COVID-19 Government Response Tracker).
        Nat Hum Behav. 2021; 5: 529-538https://doi.org/10.1038/s41562-021-01079-8
        View in Article

      3. SARS-CoV-2: Wie ein Sänger (fast) den gesamten Chor angesteckt hat. 2020. Available at:https://www.aerzteblatt.de/nachrichten/112861/SARS-CoV-2-Wie-ein-Saenger-(fast)-den-gesamten-Chor-angesteckt-hat. Accessed December 20 2021. Published 14. Mai 2020.

        View in Article

      4. Charlotte N. High rate of SARS-CoV-2 transmission due to choir practice in France at the beginning of the COVID-19 pandemic. J Voice. 2020;2020:S0892-1997. https://doi.org/10.1101/2020.07.19.20145326.

        View in Article
        • Hamner L
        • Dubbel P
        • Capron I
        • et al.
        High SARS-CoV-2 attack rate following exposure at a choir practice - Skagit County, Washington, March 2020.
        MMWR Morb Mortal Wkly Rep. 2020; 69 (http://dx.doi.org/10.15585/mmwr.mm6919e6): 606-610
        View in Article

      6. Pentreath R. Choir practice in Spain transmits coronavirus to 30 out of 41 members. 2020. Available at:https://www.classicfm.com/music-news/coronavirus/choir-practice-spain-infects-30-of-41-members/. Accessed December 20, 2021.

        View in Article

      7. Van der Lint P. Die ene Passion die wel doorging, met rampzalige gevolgen. Trouw. 2020. Available at:https://www.trouw.nl/verdieping/die-ene-passion-die-wel-doorging-met-rampzalige-gevolgen∼b4ced33e/. Accessed December 20, 2021. Published 09.05.2020.

        View in Article
        • Althouse BM
        • Wenger EA
        • Miller JC
        • et al.
        Superspreading events in the transmission dynamics of SARS-CoV-2:opportunities for interventions and control.
        PLoS Biol. 2020; 18e3000897https://doi.org/10.1371/journal.pbio.300089710.1371/journal.pbio.3000897
        View in Article
        • Anfinrud P
        • Stadnytskyi V
        • Bax CE
        • et al.
        Visualizing speech-generated oral fluid droplets with laser light scattering.
        N Engl J Med. 2020; : 2061-2063https://doi.org/10.1056/NEJMc2007800
        View in Article
        • Asadi S
        • Wexler AS
        • Cappa CD
        • et al.
        Effect of voicing and articulation manner on aerosol particle emission during human speech.
        PLoS One. 2020; 15e0227699https://doi.org/10.1371/journal.pone.0227699
        View in Article
        • Bahl P
        • de Silva C
        • Bhattacharjee S
        • et al.
        Droplets and aerosols generated by singing and the risk of COVID-19 for choirs.
        Clin Infect Dis. 2020; : e639-e641https://doi.org/10.1093/cid/ciaa1241
        View in Article

      12. Mürbe D, Fleischer M, Lange J, et al. Aerosol emission is increased in professional singing. Preprint, Technische Universität Berlin. 2020:e0246819. http://dx.doi.org/10.14279/depositonce-10375.

        View in Article
        • Doremalen N
        • Bushmaker T
        • Morris D
        • et al.
        Aerosol and surface stabiliy of SARS-CoV-2 as compares with SARS-COV1.
        N Engl J Med. 2020; 382: 1564-1567https://doi.org/10.1056/NEJMc2004973
        View in Article
        • Duguid JP.
        The size and the duration of air-carriage of respiratory droplets and droplet-nuclei.
        J Hyg (Lond). 1946; 44: 471-479https://doi.org/10.1017/s0022172400019288
        View in Article
        • Johnson GR
        • Morawska L
        • Ristovski ZD
        • et al.
        Modality of human expired aerosol size distributions.
        J Aerosol Sci. 2011; 42: 839-851https://doi.org/10.1016/j.jaerosci.2011.07.009
        View in Article
        • Morawska L
        • Johnson GR
        • Ristovski ZD
        • et al.
        Size distribution and sites of origin of droplets expelled from the human respiratory tract during expiratory activities.
        J Aerosol Sci. 2009; 40: 256-269https://doi.org/10.1016/j.jaerosci.2008.11.002
        View in Article
        • Alsved M
        • Matamis A
        • Bohlin R
        • et al.
        Exhaled respiratory particles during singing and talking.
        Aerosol Sci Technol. 2020; 54: 1245-1248https://doi.org/10.1080/02786826.2020.1812502
        View in Article
        • Bourouiba L.
        Turbulent gas clouds and respiratory pathogen emissions: potential implications for reducing transmission of COVID-19.
        JAMA. 2020; 323: 1837-1838https://doi.org/10.1001/jama.2020.4756
        View in Article
        • Stadnytskyi V
        • Bax CE
        • Bax A
        • et al.
        The airborne lifetime of small speech droplets and their potential importance in SARS-CoV-2 transmission.
        Proc Natl Acad Sci USA. 2020; https://doi.org/10.1073/pnas.2006874117
        View in Article
        • Tang JW
        • Li Y
        • Eames I
        • et al.
        Factors involved in the aerosol transmission of infection and control of ventilation in healthcare premises.
        J Hosp Infect. 2006; 64: 100-114https://doi.org/10.1016/j.jhin.2006.05.022
        View in Article
        • Echternach M
        • Hermann L
        • Gantner S
        • et al.
        The effect of singers’ masks on the impulse dispersion of aerosols during singing.
        J Voice. 2021; https://doi.org/10.1016/j.jvoice.2021.08.011
        View in Article
        • Echternach M
        • Gantner S
        • Peters G
        • et al.
        Impulse dispersion of aerosols during singing and speaking: a potential COVID-19 transmission pathway.
        Am J Respir Crit Care Med. 2020; 202: 1584-1587https://doi.org/10.1164/rccm.202009-3438LE
        View in Article
        • Becher L
        • Gena AW
        • Alsaad H
        • et al.
        The spread of breathing air from wind instruments and singers using schlieren techniques.
        Indoor Air. 2021; https://doi.org/10.1111/ina.12869
        View in Article
        • Westphalen C
        • Kniesburges S
        • Veltrup R
        • et al.
        Sources of aerosol dispersion during singing and potential safety procedures for singers.
        J Voice. 2021; https://doi.org/10.1016/j.jvoice.2021.03.013
        View in Article

      25. Kniesburges SSP, Peters G, Westphalen C, et al. Effects of surgical masks on aerosol dispersion in professional singing. J Expo Sci Environ Epidemiol. 2021:1–8. https://doi.org/10.1038/s41370-021-00385-7.

        View in Article
      26. The Chorus Impact Study: Singing for a Lifetime.
        Chorus America, 2019 (Available at:)
        https://chorusamerica.org/resource/chorus-impact-study-singing-lifetime
        (Accessed December 20, 2021)
        View in Article
        • Liersch A
        • Ase D.
        Bildung und Kultur; Spartenbericht Musik.
        2016 (Available at:)
        https://www.destatis.de/DE/Themen/Gesellschaft-Umwelt/Bildung-Forschung-Kultur/Kultur/Publikationen/Downloads-Kultur/spartenbericht-musik-5216203169004.pdf?__blob=publicationFile
        (Accessed December 20, 2021)
        View in Article

      28. Holetschek K. Dreizehnte Bayerische Infektionsschutzmaßnahmenverordnung. In: Pflege BSfGu, ed 05.06.2021.

        View in Article
        • Jacobson BH
        • Johnson A
        • Grywalski C
        • et al.
        The Voice Handicap Index (VHI).
        Am J Speech-Lang Pathol. 1997; 6: 66-70https://doi.org/10.1044/1058-0360.0603.66
        View in Article
        • Nawka T
        • Wiesmann U
        • Gonnermann U.
        Validation of the German version of the voice handicap index.
        HNO. 2003; 51: 921-930https://doi.org/10.1007/s00106-003-0909-8
        View in Article

      31. Gantner S, Echternach M, Veltrup R, et al. Impulse dispersion of aerosols during playing wind instruments. Preprint MedRxiv. 2021. https://doi.org/10.1101/2021.01.25.20248984.

        View in Article
        • Ai Z
        • Mak CM
        • Gao N
        • et al.
        Tracer gas is a suitable surrogate of exhaled droplet nuclei for studying airborne transmission in the built environment.
        Build Simul. 2020; : 1-8https://doi.org/10.1007/s12273-020-0614-5
        View in Article
        • Ingebrethsen BJ
        • Cole SK
        • Alderman SL.
        Electronic cigarette aerosol particle size distribution measurements.
        Inhal Toxicol. 2012; 24: 976-984https://doi.org/10.3109/08958378.2012.744781
        View in Article

      34. Wang J, Du G. COVID-19 may transmit through aerosol. Ir J Med Sci. 2020. https://doi.org/10.1007/s11845-020-02218-2.

        View in Article
        • Mürbe DKM
        • Lange J
        • Schumann L
        • et al.
        Aerosol emission of adolescents voices during speaking, singing and shouting.
        PLoS One. 2021; 16e0246819https://doi.org/10.1371/journal.pone.0246819
        View in Article
        • Theorell T
        • Jl K
        • Theorell AML
        • et al.
        Choir singers without rehearsals and concerts? A questionnaire study on perceived losses from restricting choral singing during the Covid-19 Pandemic.
        J Voice. 2020; https://doi.org/10.1016/j.jvoice.2020.11.006
        View in Article
        • Echternach M
        • Burk F
        • Burdumy M
        • et al.
        Morphometric differences of vocal tract articulators in different loudness conditions in singing.
        Plos One. 2016; 11e0153792https://doi.org/10.1371/journal.pone.0153792
        View in Article
        • Ribeiro VV
        • Dassie-Leite AP
        • Pereira EC
        • et al.
        Effect of wearing a face mask on vocal self-perception during a pandemic.
        J Voice. 2020; https://doi.org/10.1016/j.jvoice.2020.09.006
        View in Article

      Article Info

      Publication History

      Published online: December 26, 2021
      Accepted: November 18, 2021

      Publication stage

      In Press Corrected Proof

      Footnotes

      This study was supported by the State of Bavaria, Ministry for Science and Arts .

      Identification

      DOI: https://doi.org/10.1016/j.jvoice.2021.11.005

      Copyright

      © 2021 The Voice Foundation. Published by Elsevier Inc. All rights reserved.

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