1. UOC Malattie Infettive Fondazione Policlinico Universitario A. Gemelli IRCCS Roma Italia
2. Istituto Clinica Malattie Infettive Università Cattolica del Sacro Cuore Roma Italia
3. Department of Epidemiology University of Florida Gainesville FL USA
4. EuResist Network Rome Italy
5. Institute of Virology University of Cologne Cologne Germany
6. Clinica delle Malattie Infettive e Tropicali dell'Università di Modena e Reggio Emilia Modena Italy
7. Unit of Infectious Diseases Department of Medicine Huddinge Karolinska Institutet Karolinska University Hospital Stockholm Sweden
8. Department of Medical Biotechnology University of Siena Siena Italy
9. Infectious Diseases Unit Siena University Hospital Siena Italy