[1] Hosp Santa Cruz & San Pablo, Dept Epidemiol Clin & Salut Publ, Epidemiol & Publ Hlth Unit, Barcelona 08041, Spain
[2] Univ Barcelona, Barcelona, Spain
[3] Hosp Univ Bellvitge, Infect Dis Serv, Lhospitalet De Llobregat, Spain
[4] Hosp del Mar, Infect Dis Unit, Barcelona, Spain
[5] Hosp Granollers, Internal Med Serv, Barcelona, Spain
[6] Hosp Clin Barcelona, Infect Dis Serv, Barcelona, Spain
[7] Hosp Calella, Internal Med Serv, Barcelona, Spain
[8] Hosp Comarcal Terrasa, Internal Med Serv, Barcelona, Spain
[9] Hosp Mataro, Barcelona, Spain
[10] Hosp Mutua Terrasa, Infect Dis Sect, Barcelona, Spain