1. Infectious and Tropical Disease Unit Padua University Hospital Padua Italy
2. University Hospital of Padua Padua Italy
3. Department of Clinical and Experimental Sciences University of Brescia Brescia Italy
4. Department of Epidemiology University of Florida Gainesville Florida USA
5. Catholic University of the Sacred Heart Rome Italy
6. Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS Rome Italy
7. Infectious and Tropical Diseases Unit of Cremona Cremona Italy
8. Clinic of Infectious Diseases, Policlinico Hospital of Bari Bari Italy
9. Infectious and Tropical Diseases Unit Magna Graecia University of Catanzaro Catanzaro Italy