File:11875.full.pdf
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The airborne lifetime of small speech droplets and their potential importance in SARS-CoV-2 transmission
Summary[edit]
| Description |
English: Speech droplets generated by asymptomatic carriers of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are increasingly considered to be a likely mode of disease transmission. Highly sensitive laser light scattering observations have revealed that loud speech can emit thousands of oral fluid droplets per second. In a closed, stagnant air environment, they disappear from the window of view with time constants in the range of 8 to 14 min, which corresponds to droplet nuclei of ca. 4 μm diameter, or 12- to 21-μm droplets prior to dehydration. These observations confirm that there is a substantial probability that normal speaking causes airborne virus transmission in confined environments. |
| Date | |
| Source |
https://www.pnas.org/content/117/22/11875 https://doi.org/10.1073/pnas.2006874117 |
| Author | Valentyn Stadnytskyi, Christina E. Bax, Adriaan Bax, and Philip Anfinrud |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 08:08, 22 June 2020 |  | 1,216 × 1,629, 3 pages (583 KB) | Pamputt (talk | contribs) | Uploaded a work by Valentyn Stadnytskyi, Christina E. Bax, Adriaan Bax, and Philip Anfinrud from https://www.pnas.org/content/117/22/11875 https://doi.org/10.1073/pnas.2006874117 with UploadWizard |
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