1. Department of Public Health; Infectious Diseases; Catholic University; Rome Italy
2. Clinic of Infectious Diseases; Univeristy of Modena and Reggio Emilia; Modena Italy
3. Department of Epidemiology; National Institute for Infectious Diseases ‘L. Spallanzani’; Rome Italy
4. Department of Infection and Population Health; Division of Population Health; University College London Medical School; Royal Free Campus; London UK
5. Institute of Infectious Diseases; University of Bari; Bari Italy
6. Institute of Infectious Diseases; University of Brescia; Brescia Italy
7. Clinical Department; National Institute for Infectious Diseases ‘L. Spallanzani’; Rome Italy
8. Clinic of Infectious and Tropical Diseases; Department of Health Sciences; San Paolo University Hospital; Milan Italy
9. Nadir Foundation Onlus; Rome Italy