1. Division of Infectious Diseases, Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
2. IRCCS Ospedale Policlinico San Martino, Genoa, Italy
3. Department of Internal Medicine (DIMI), Geriatric Clinic, University of Genoa, Genoa, Italy
4. Section of Biostatistics, Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
5. Department of Emergency, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
6. Department of Informatics Bioengineering, Robotics, and Systems Engineering (DIBRIS), University of Genova, Genoa, Italy
7. Hygiene Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy