Sniffer dogs used to detect Covid, 'close to 100% accuracy'

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Four Covid-19 sniffer dogs have begun work at Helsinki airport in a state-funded pilot scheme that Finnish researchers hope will provide a cheap, fast and effective alternative method of testing people for the virus.

A dog is capable of detecting the presence of the coronavirus within 10 seconds and the entire process takes less than a minute to complete, according to Anna Hielm-Björkman of the University of Helsinki, who is overseeing the trial.

Dogs are also able to identify Covid-19 from a much smaller molecular sample than PCR tests, Helsinki airport said, needing only 10-100 molecules to detect the presence of the virus compared with the 18m needed by laboratory equipment.

Although Covid-19 is known to infect mink and cats, dogs do not have the receptors necessary for the virus to readily gain a foothold and do not appear to be easily infected, according to Hielm-Björkman. There is no evidence that they can transmit the virus to people or other animals.

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This is the covid version of Kim Kardashian sniffing people for cavities