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Sniffer Dogs Could Bolster Coronavirus Screening at UK Airports

Sniffer dogs could contribute to efforts to prevent the spread of Covid as society reopens, according to scientists.

BBC News, 3 JUN 2021.

As part of a trial, dogs were trained to recognise a distinctive odour produced by people with the virus, but undetectable to the human nose.

As part of the current canine screening trial, six dogs were trained to recognise the smell produced by people with Covid-19 using worn socks, face masks and t-shirts of various materials.

The dogs' findings would still need to be confirmed by lab testing, since they correctly picked up 88% of coronavirus cases, but also incorrectly flagged 14% of people as having the virus when no Covid was present.