1. Department of Clinical and Experimental Medicine, Unit of Infectious Diseases, University of Catania, Catania, Italy
2. Unit of Clinical Pharmacology, Fatebenefratelli Sacco University Hospital, Milan, Italy
3. Emergency Surgery Unit, San Filippo Neri Hospital, Rome, Italy
4. Department of Biology, University of Pisa, Pisa, Italy
5. Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliera Universitaria Pisana, University of Pisa, Pisa, Italy
6. Clinic of Infectious Disease and Tropical Medicine, ASST Santi Paolo e Carlo, Department of Health Sciences, University of Milan, Milan, Italy
7. Department of Medicine, University of Udine, Udine, Italy
8. Department of Public Health and Infectious Diseases, ‘Sapienza’ University of Rome, Italy