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HomeMIT RES.10-S95 Physics of COVID-19 Transmission, Fall 2020Video 1-4: Transfer of Respiratory Pathogens—Equilibrium Size of Respiratory Aerosols

Video 1-4: Transfer of Respiratory Pathogens—Equilibrium Size of Respiratory Aerosols

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Equilibrium droplet size varies with relative humidity. Infectious respiratory droplets contain proteins, sugars, salts, and virions. Mucus has a greater volume fraction of solutes than saliva. Droplets are hygroscopic and grow at high relative humidities.

Speaker: Professor Martin Z. Bazant