Do your research before you post. That link is to an article in Slate, and it is totally wrong. The study by Lydia Bouroiuba, a mathematician at MIT, shows that suspended particles can travel up to 2.5 meters before falling to the floor, in INDOOR conditions with no breeze and relatively low evaporation rates. Several prominent epidemiologists have stated that those particles found at the extreme of the range would be very unlikely to contain suffecient levels of a virus to cause an infection. Please, more science and less fear mongering.
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