Katherine J Wu, The New York Times
Published: 20 Jan 2021 11:43 AM BdST
Updated: 20 Jan 2021 11:43 AM BdST FILE A coronavirus testing site in Los Angeles, Jan 3, 2021. A new modelling study hints that odour-based screens could quash outbreaks. But some experts are sceptical it would work in the real world. (Kendrick Brinson/The New York Times)
In a perfect world, the entrance to every office, restaurant and school would offer a coronavirus test one with absolute accuracy, and able to instantly determine who was virus-free and safe to admit and who, positively infected, should be turned away. );
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That reality does not exist. But as the nation struggles to regain a semblance of normal life amid the uncontrolled spread of the virus, some scientists think that a quick test consisting of little more than a stinky strip of paper might at least get us close.
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