1. Department of Experimental and Clinical Medicine, University of Florence , Florence , Italy
2. Infectious and Tropical Diseases Unit, Azienda Ospedaliero-Universitaria Careggi , Florence , Italy
3. Department of Infectious Disease and Infectious Emergencies, AORN dei Colli, Cotugno Hospital , Naples , Italy
4. Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche , Ancona , Italy
5. Clinical Microbiology and Virology Unit, Florence Careggi University Hospital , Florence , Italy
6. Clinic of Infectious Diseases, Azienda Ospedaliero-Universitaria delle Marche , Ancona , Italy
7. Microbiology Unit, AORN Ospedali dei Colli-Monaldi Hospital , Naples , Italy
8. Unit of Emerging and Immunosuppressed Infectious Diseases, Department of Gastroenterology and Transplantation, Azienda Ospedaliero-Universitaria ‘Ospedali Riuniti’ , Ancona , Italy