Six feet of distance may not be enough to prevent coronavirus transmission, experts say, adding that the world needs to take airborne transmission of the virus seriously.
In a commentary published in the journal Science, the experts called for “regular, widespread testing” to find asymptomatic cases, and they pointed to places where mask wearing is universal and the virus has been controlled, like Singapore, Hong Kong and Taiwan. World Health Organization guidance might not be enough in all situations, they said.
“Increasing evidence for [the coronavirus] suggests the six foot WHO recommendation is likely not enough under many indoor conditions where aerosols can remain airborne for hours, accumulate over time, and follow air flows over distances further than six feet,” they wrote. Spread is more likely when people are in close contact with one another, or “within about 6 feet,” the CDC says. That’s because respiratory droplets are relatively large and fall to the ground – unlike aerosols, which are smaller and more likely to stay in the air longer.
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