coronavirus - and they have the potential to sniff out the virus in up to 250 people an hour. There's an appeal for people who've been recently tested with the virus, or who have symptoms and are awaiting a test, to contact researchers to participate in a trial.All they have to do is to wear a t-shirt, socks and mask for several hours, which are posted to researchers and used to train the dogs.Professor James Logan, head of disease control at the London School of Hygiene and Tropical Medicine, told the BBC's Radio 4 Today programme that initial research looks promising.Get the latest updates from across Greater Manchester direct to your inbox with the free MEN newsletterYou can sign up very simply by following the instructions hereHe said:.