[1] Univ Fed Rio Grande do Sul, Fac Med, Porto Alegre, RS, Brazil
[2] Hosp Clin Porto Alegre, Rheumatol Div, Porto Alegre, RS, Brazil
[3] Univ Fed Parana, Internal Med, Curitiba, Parana, Brazil
[4] CEMIC, Dept Internal Med, Infect Dis Sect, Buenos Aires, DF, Argentina
[5] Inst Univ CEMIC, Buenos Aires, DF, Argentina
[6] Univ Los Andes, Sch Med, Bogota, Colombia
[7] Hosp Univ Fdn Santa Fe Bogota, Rheumatol Dept, Bogota, Colombia
[8] Natl Inst Med Sci & Nutr Salvador Zubiran INCMNSZ, Transplantat Dept, Mexico City, DF, Mexico
[9] Hosp Docente Padre Billini, Rheumatol Serv, Santo Domingo, Dominican Rep
[10] Natl Inst Rehabil, Mexico City, DF, Mexico
[11] Isalud Univ, Argentine Infect Dis Soc, Buenos Aires, DF, Argentina
[12] Isalud Univ, Ctr Studies Control & Prevent Communicable Dis, Buenos Aires, DF, Argentina