1. Pediatric and Infectious Diseases Department
2. Infectious Diseases Department
3. La Paz Institute for Health Research (IdiPAZ), Madrid, Spain
4. Biomedical Research Network Centre for Infectious Diseases (CIBERINFEC), Carlos III Health Institute, Madrid, Spain
5. Infectious Diseases Department, Marqués de Valdecilla University Hospital, Cantabria, Spain
6. Institute of Research Valdecilla, Santander, Spain
7. Orthopedic Surgery Department, Spine Unit
8. Microbiology Department
9. Preventive Medicine and Public Health Department, La Paz University Hospital, Madrid, Spain
10. Translational Research Network in Pediatric Infectious Diseases, Madrid, Spain.