Dogs sniff out coronavirus ‘far better than machines or tests’.

Research teams around the world are taking advantage of dogs’ remarkable sense of smell to train them to detect the presence of the coronavirus. At the University of Helsinki, researchers believe that the sniffer dogs Kössi and Lucky may prove to be faster and more accurate detectors of SARS-CoV-2, the virus that causes COVID-19, than any other currently available method. Using urine samples collected from patients across Finland, the research team has trained the dogs to differentiate between positive and negative samples. More encouragingly, the dogs also appear to be able to detect the presence of COVID-19 before patients display any signs of illness.