1. Department of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón , Madrid, Spain
2. Instituto de Investigación Sanitaria Gregorio Marañón , Madrid, Spain
3. CIBERES (CB06/06/0058), CIBER Enfermedades Respiratorias , Madrid, Spain
4. Department of Medicine, School of Medicine, Universidad Complutense de Madrid , Madrid, Spain
5. Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC) , Madrid, Spain
6. Department of Pneumology, Hospital General Universitario Gregorio Marañón , Madrid, Spain