So far, research about the coronavirus has shown that it’s spread through respiratory droplets — the tiny particles that float through the air when we cough or sneeze.
Those particles are largely thought to fall to the ground within minutes. Now, though, a group of 239 scientists have sent an open letter to the World Health Organization (WHO) encouraging them to revise their statement about how the virus spreads to include airborne transmission.
The scientists say there’s evidence that smaller particles can hang in the air for hours, especially indoors, and can be a source of infection for COVID-19.
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