1. Infectious Diseases Unit, IRCCS Ospedale Policlinico San Martino, University of Genoa, Genoa, Italy
2. Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
3. Section of Biostatistics, Department of Health Sciences, University of Genoa, Genoa, Italy
4. Anesthesia and Intensive Care, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
5. Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
6. Hygiene Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
7. Department of Informatics, Bioengineering, Robotics and System Engineering (DIBRIS), University of Genoa, Genoa, Italy