Study: Dogs 97% effective at detecting COVID in sweat

Scientists at The National Veterinary School of Alfort published their findings Wednesday saying the ability of dogs to detect the coronavirus in sweat from people was "very promising." The study was conducted from March 16 to April 9 in France and looked at two different tests to detect COVID-19: a nasopharyngeal swab and the canine olfactory test. More than 300 volunteers from 6 to 76 years old took part in the study that involved nine trained dogs and French firefighters from the United Arab Emirates. The participants put compresses underneath their arms for two minutes. The compresses were then locked in a jar and sniffed by two different dogs who were not in contact with the participants. Researchers didn’t know at the time which compresses tested positive for COVID-19.