TOKYO (Reuters) - More quiet zones in high-risk indoor spaces, such as hospitals and restaurants, could help to cut coronavirus contagion risks, researchers have said, after a study showed that lowering speaking volume can reduce the spread of the disease.
In efforts to rein in transmission, a reduction of 6 decibels in average speech levels can have the same effect as doubling a room's ventilation, scientists said on Wednesday, in an advance copy of a paper detailing their study.
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