1. IRCCS Ospedale Policlinico San Martino, Genoa, Italy
2. Department of Neurology, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
3. Division of Infectious Diseases, Department of Health Sciences, University of Genoa, Genoa, Italy
4. Hygiene Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
5. Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy