Covid-Sniffing Dogs Trained At Bio-Medico University Campus In Rome

ROME, ITALY - MARCH 29: Medical staff in the Polyclinic's analysis laboratory where molecular tests are performed on nasopharyngeal swabs on March 29, 2021 in Rome, Italy. The study, which will use a statistically relevant sample of more than 1000 patients, will test whether dogs can be trained to screen symptomatic and asymptomatic Covid-19 patients. (Photo by Simona Granati - Corbis/Corbis via Getty Images)