Smells like pandemic to me

Published May 2, 2020

University of Pennsylvania researchers are teaching dogs to sniff out people with CoviD-19.
Eight dogs will […] will first learn to recognize the smell of COVID-19 in saliva and urine samples from infected patients, through a technique known as odor imprinting. The dogs will then be tasked with differentiating between those samples and samples collected from people who do not have the disease.