1. Department of Experimental Medicine and Surgery, University of Rome ‘Tor Vergata’, Rome 00133, Italy
2. Department of Infectious Diseases, Rui Jin Hospital, Shanghai Jiao Tong University, Shanghai 200025, PR China
3. Bordeaux University Hospital, University Victor Segalen, Bordeaux 33076, France
4. University Hospital ‘Tor Vergata’, Rome 00133, Italy
5. ‘L. Sacco’ Hospital, Milan 20157, Italy
6. ‘S. Pertini’ Hospital, Rome 00157, Italy
7. Hospital ‘Santa Maria Annunziata’, Florence 50126, Italy
8. University ‘La Sapienza’, Rome 00185, Italy
9. University of Cologne, Cologne 50923, Germany
10. Infectious Diseases Unit, University of Milan, Milan 20122, Italy