Should we be using 'sniff tests' to screen for COVID-19?

One of the best ways of containing the spread of COVID-19 is to rapidly identify people infected with the coronavirus and prevent them from passing it to others.

Temperature checks are now being used as a public screening tool for identifying people with COVID-19, with countries such as Taiwan using temperature checks as a key component of their containment measures.

Yet there is little scientific evidence that temperature checks enable reliable detection of COVID-19.

For a

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