1. Department of Infectious Diseases, Hospital Universitario Ramón y Cajal, IRYCIS , Madrid , Spain
2. CIBER de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III , Madrid , Spain
3. Clinical Biostatistic Unit, Hospital Universitario Ramón y Cajal, IRYCIS , Madrid , Spain
4. CIBER de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III , Madrid , Spain
5. University of Alcalá , Madrid , Spain
6. Department of Internal Medicine, Hospital Universitario de La Princesa , Madrid , Spain
7. Centro Sanitario Sandoval, Hospital Clínico San Carlos, IdISSC , Madrid , Spain
8. Infectious Diseases Unit, Complejo Hospitalario Universitario a Coruña (CHUAC) , Madrid , Spain
9. Department of Internal Medicine – Infectious Diseases, Hospital Universitario Son Espases , Palma , Spain