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As public health guidelines continue to recommend a two-metre space between people in an effort to slow the spread of the novel coronavirus, a recently published study led by Western University researchers shows that distance is not far enough if someone coughs.
The cough chamber is a two-metre enclosed cube with an opening for study participants to cough into and is equipped with a camera and laser to determine the velocity of expelled droplets from a cough.
“Even when you are 2.5 metres (eight feet) away, the airflow in the cough can still be moving at 200 millimetres a second,” explains the researcher behind the cough chamber, Eric Savory, who also collaborated with virologists at Sunnybrook Hospital in Toronto.
https://news.google.com/articles/CAIiEKp2yHiKvsmJEDd5u_w01IgqGQgEKhAIACoHCAowqeP_CjDdg_oCMMTh6QU?hl=en-US&gl=US&ceid=US%3Aen
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