Sniffer dogs have started to be deployed at Helsinki airport to detect Covid-19 among travellers, in a state-funded trial that it is hoped 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
