1. Academic Department of Pediatrics, Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children’s Hospital , Rome , Italy
2. Precision Vaccines Program, Boston Children’s Hospital , Boston, Massachusetts , USA
3. Department of Systems Medicine, University of Rome “Tor Vergata,” Rome , Italy
4. Department of Microbiology, Bambino Gesù Children’s Hospital , Rome , Italy
5. General Pediatrics Unit, Department of Emergency, Acceptance and General Pediatrics, Bambino Gesù Children’s Hospital , Rome , Italy
6. Harvard Medical School, Boston, Massachusetts , USA
7. Broad Institute of Massachusetts Institute of Technology and Harvard , Cambridge, Massachusetts , USA