Fluid Dynamics Shows Why You Should Wear Masks Outdoors To Prevent Coronavirus Exposure
Wind blowing in the same direction as a cough can increase viral transmission.
As the highly infectious delta variant of the coronavirus continues to spread across the United States, guidelines from the Centers for Disease Control and Prevention recommend even the vaccinated wear masks indoors to prevent exposure and transmission.
However, it is less clear what people should do when outside.
In Physics of Fluids, by AIP Publishing, researchers from the Indian Institute of Technology Bombay found when a person coughs outdoors, wind flowing in the same direction can propagate the virus faster over longer distances than in calm conditions.
“The study is significant in that it points to the increased infection risk that coughing in the same direction as the wind could bring about,” co-author Amit Agrawal said. “Based …
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