Aerosols are a bigger coronavirus threat than WHO guidelines suggest – here's what you need to know
- Written by Byron Erath, Associate professor of fluid mechanics, Clarkson University
Aerosols are made up of tiny respiratory droplets suspended in the air.Jeffrey Coolidge via Getty ImagesWhen someone coughs, talks or even breathes, they send tiny respiratory droplets into the surrounding air. The smallest of these droplets can float for hours, and there is strong evidence that they can carry live coronavirus if the person is...

