Could speaking softly curb coronavirus spread?

A preprint paper suggests hospitals could have 'quiet zones' to limit transmission of the virus

Lowering speaking volume can reduce transmissibility of coronavirus, researchers say, a finding that could have implications for the management of high-risk indoor spaces such as hospitals and restaurants.

A 6-decibel reduction in average vocalisation intensity can have the same effect in curbing contagion risks as doubling the ventilation rate in a room, researchers from the University of California Davis say in a study posted on the arXiv preprint server.

"The results suggest that public health authorities should

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