Paper citing many studies which reveal a typical droplet from talking, breathing, coughing will travel tens of meters...not just 1 or 2.... #cincinnativoiceteacher #cincinnativoicelessons #onlinevoicelessonswork #getyoursingingon #coronavirussingin
This paper is signed by 239 scientists from 32 countries representing many different areas of science and engineering, including virology, aerosol physics, flow dynamics, exposure and epidemiology, medicine, and building engineering.
And they are only speaking of talking, coughing, and breathing...
"Studies by the signatories and other scientists have demonstrated beyond any reasonable doubt that viruses are released during exhalation, talking, and coughing in microdroplets small enough to remain aloft in air and pose a risk of exposure at distances beyond 1 to 2 m from an infected individual. For example, at typical indoor air velocities, a 5 μm droplet will travel tens of meters, much greater than the scale of a typical room, while settling from a height of 1.5 m to the floor."
Sorry to keep harping on this topic, but these are things which need to be understood before making decisions about returning to school or taking in-person lessons.
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