epa09104990 Luna is one of the dogs of the canine units usually committed to anti-explosive safety, which will test, with their sense of smell, the patients who will go to the drive-in of the Bio-Medico Campus to perform the swab, Rome, Italy, 29 March 2021. In fact, through sweat it is possible to trace Covid-19, the research project that starts at the drive-in of the Campus Bio-Medico University Hospital together with the 'Security Dog' is aimed to train dogs to recognize whether a patient is positive or not for Covid-19. EPA-EFE/FABIO FRUSTACI

epa09105006 Luna is one of the dogs of the canine units usually committed to anti-explosive safety, which will test, with their sense of smell, the patients who will go to the drive-in of the Bio-Medico Campus to perform the swab, Rome, Italy, 29 March 2021. In fact, through sweat it is possible to trace Covid-19, the research project that starts at the drive-in of the Campus Bio-Medico University Hospital together with the 'Security Dog' is aimed to train dogs to recognize whether a patient is positive or not for Covid-19. EPA-EFE/FABIO FRUSTACI

epa09105004 Lex is one of the dogs of the canine units usually committed to anti-explosive safety, which will test, with their sense of smell, the patients who will go to the drive-in of the Bio-Medico Campus to perform the swab, Rome, Italy, 29 March 2021. In fact, through sweat it is possible to trace Covid-19, the research project that starts at the drive-in of the Campus Bio-Medico University Hospital together with the 'Security Dog' is aimed to train dogs to recognize whether a patient is positive or not for Covid-19. EPA-EFE/FABIO FRUSTACI