in the middle east, dogs have been snimpg at the dubai international airport since summer.ay they have an accuracy rate of 92%. i spoke to researchers at the university of pennsylvania where they're training their own dogs to help in the battle against the pandemic. this is miss m. she's searching for a particular scent and she knows what she finds it, she can scurry off for a treat. good girl. she and poncho are two of eight labrador retrievers working with the university of pennsylvania's school of veterinary medicine. researchers hope to show that dogs can sniff out covid-19. >> good girl! >> this is not a pie in the sky idea. zrogs sniffed out diseases before. >> absolutely. >> reporter: dr. jaint otto is the director of pen vets working dog center. >> they've done it with ovarian cancer. they do it with a lot of other diseases. we're pretty confident that they can do it. >> reporter: dogs have sniff out blood sugar levels before they become dangerous. their own special signature and dogs can can recognize a virus in culture. >> reporter: if the dogs can successfully de