1. Infectious Disease Clinic; Policlinico Hospital San Martino; University of Genoa; Genoa Italy
2. Infectious Disease Clinic; Policlinico Hospital San Martino; Genoa Italy
3. Division of Infectious Diseases; ASST Papa Giovanni XXIII; Bergamo Italy
4. ICONA Foundation; Milan Italy
5. Infectious Diseases Clinic; Policlinico Hospital Giovanni XXIII; Bari Italy
6. Unit of Infectious Diseases; Department of Medical Sciences; University of Torino; Torino Italy
7. National Institute of Infectious Diseases Lazzaro Spallanzani; Rome Italy
8. Department of Infectious Diseases; Amedeo di Savoia Hospital; Torino Italy
9. Department of Health Sciences; University of Ancona; Ancona Italy
10. Department of Health Sciences; Clinic of Infectious and Tropical Diseases; S Paolo Hospital; University of Milan; Milan Italy
11. University College London; London UK