1. From the Pediatrics Department, La Paz University Hospital
2. Pediatric Hemato-Oncology Department, La Paz University Hospital
3. Pediatrics and Infectious Disease Department, La Paz University Hospital
4. Hospital La Paz Institute for Health Research (IdiPAZ)
5. Translational Research Network of Pediatric Infectious Diseases (RITIP)
6. Center for Biomedical Research Network on Infectious Diseases (CIBERINFEC), Carlos III Health Institute
7. Microbiology Department, La Paz University Hospital
8. Immunology Department, La Paz University Hospital
9. Center for Biomedical Research Network on Rare Diseases (CIBERER U767), Carlos III Health Institute
10. Universidad Autónoma de Madrid, Madrid, Spain.