[1] Careggi Hosp, SOD Malattie Infett & Trop, Florence, Italy
[2] Univ Ferrara, Dept Med Sci, Rheumatol Unit, Milan, Italy
[3] Italian Soc Rheumatol, Epidemiol Unit, Milan, Italy
[4] Univ Barcelona, Barcelona Inst Global Hlth ISGlobal CRESIB, Hosp Clin, Barcelona, Spain
[5] Hosp Virgen del Puerto, Div Rheumatol, Plasencia, Spain
[6] Sacro Cuore Hosp, Ctr Trop Dis, Verona, Italy
[7] Univ Pavia, Div Rheumatol, IRCCS S Matteo Fdn, Pavia, Italy
[8] Sapienza Univ, Dept Internal Med & Med Specialties, Rheumatol Unit, Rome, Italy
[9] Univ La Laguna, Hosp Univ Canarias, Div Rheumatol, Dept Med, San Cristobal la Laguna, Spain
[10] Hosp Univ Mostoles, Serv Reumatol, Madrid, Spain
[11] Spanish Soc Rheumatol, Res Unit, Madrid, Spain
[12] Univ Hop Trieste, Infect Dis Unit, Trieste, Italy
[13] San Camillo Hosp, Div Rheumatol, Rome, Italy
[14] San Camillo Hosp, Gen Directorate, Rome, Italy
[15] Univ Europea Madrid, Hosp Univ Infanta Sofia, Div Rheumatol, Madrid, Spain
[16] Univ Brescia, Univ Dept Infect & Trop Dis, Brescia, Italy
[17] Brescia Spedali Civili Gen Hosp, Brescia, Italy
[18] Spanish Soc Trop Med & Int Hlth, Inst Hispalense Pediat, Unidad Vacunac Int, Granada, Spain
[19] Univ Florence, Div Rheumatol AOUC, Dept Expt & Clin Med, Florence, Italy