[1] La Paz Univ Hosp, Dept Infect Dis, Paseo Castellana 261, Madrid 28046, Spain
[2] La Paz Univ Hosp, Dept Geriatr, Paseo Castellana 261, Madrid 28046, Spain
[3] La Paz Univ Hosp, Dept Cardiol, Paseo Castellana 261, Madrid 28046, Spain
[4] La Paz Univ Hosp, Dept Clin Microbiol, Paseo Castellana 261, Madrid 28046, Spain
[5] La Paz Univ Hosp, Dept Internal Med, Paseo Castellana 261, Madrid 28046, Spain
[6] Inst Salud Carlos III, Ctr Invest Biomed Red Enfermedades Infecciosas CIB, Madrid, Spain