1. Division of Infectious Diseases, ASST Papa Giovanni XXIII, Bergamo, Italy.
2. Infectious Diseases Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy.
3. Department of Sciences for Health Promotion “G. D'Alessandro,” University of Palermo, Palermo, Italy.
4. Department of Medicinal Clinics and Emerging Diseases, “Paolo Giaccone” Policlinic University Hospital, Palermo, Italy.
5. Unit of Infectious Diseases, Department of Health Sciences, San Martino Policlinico Hospital, University of Genoa, Genoa, Italy.
6. Department of Clinical and Molecular Biomedicine, Division of Infectious Diseases, University of Catania, Catania, Italy.
7. Clinic of Infectious Diseases, San Gerardo Hospital, University of Milano-Bicocca, Milan, Italy.
8. Infectious and Tropical Diseases Unit, National Institute for Infectious Disease “L. Spallanzani,” Roma, Italy.
9. Unit of Infectious Diseases, Department of Clinical and Experimental Medicine, University of Sassarim Sassari, Italy.
10. Department of Infectious Diseases, San Raffaele Scientific Institute, Milano, Italy.
11. Divisione Clinicizzata di Malattie Infettive, DIBIC L. Sacco, Università degli Studi di Milano, Milan, Italy.
12. Infectious Disease Unit, Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties (PROMISE), Policlinico “P. Giaccone,” University of Palermo, Palermo, Italy.