1. Department of Infectious Disease, Faculty of Medicine, Imperial College London , London , UK
2. Centre for Paediatrics and Child Health, Imperial College London , London, SW7 2AZ , UK
3. Department of Electrical and Electronic Engineering, Faculty of Engineering, Imperial College London , London , UK
4. Department of Pediatrics, Rady Children’s Hospital and University of California San Diego , La Jolla, California , USA
5. Department of Pediatrics, Inselspital, Bern University Hospital, University of Bern , Bern , Switzerland
6. Department of Paediatric Infectious Diseases and Immunology, Wilhelmina Children’s Hospital, University Medical Centre Utrecht , Utrecht , The Netherlands
7. Joint Research Unit Hospices Civils de Lyon-bioMérieux, Lyon Sud Hospital , Pierre-Bénite , France
8. Department of Clinical Infection Microbiology and Immunology, University of Liverpool Institute of Infection, Veterinary and Ecological Sciences , Liverpool , UK
9. Paediatric Intensive Care, Evelina London Children’s Hospital, Guy’s and St Thomas’ NHS Foundation Trust , London , UK
10. Department of Women and Children’s Health, School of Life Course Sciences, King’s College London, St Thomas’ Hospital , London , UK
11. Second Department of Paediatrics, National and Kapodistrian University of Athens (NKUA), School of Medicine, P. and A. Kyriakou Children’s Hospital , Athens , Greece
12. Translational and Clinical Research Institute, Newcastle University , Newcastle upon Tyne , UK
13. Paediatric Infectious Diseases and Immunology Department, Newcastle upon Tyne Hospitals Foundation Trust, Great North Children’s Hospital , Newcastle upon Tyne , UK
14. NIHR Newcastle Biomedical Research Centre, Newcastle upon Tyne Hospitals NHS Trust and Newcastle University , Newcastle upon Tyne , UK
15. Pediatric Infectious Diseases Unit, Pediatric Department, Hospital Doce de Octubre , Madrid , Spain
16. Department of Pediatrics, Division of Pediatric Infectious Diseases and Immunology and Laboratory of Infectious Diseases, Radboud Institute of Molecular Life Sciences, Radboudumc , Nijmegen , The Netherlands
17. Academic Department of Paediatrics, Royal Alexandra Children’s Hospital, University Hospitals Sussex , Brighton , UK
18. Micropathology Ltd., University of Warwick , Warwick , UK
19. SkylineDx , Rotterdam , The Netherlands
20. Department of Pediatric Immunology, Rheumatology, and Infectious Diseases, Emma Children’s Hospital, Amsterdam University Medical Centre , Amsterdam , The Netherlands
21. Sanquin Research, Department of Blood Cell Research, and Landsteiner Laboratory, Amsterdam University Medical Centre , Amsterdam , The Netherlands
22. Department of Pediatrics, Erasmus MC Sophia Children’s Hospital , Rotterdam , The Netherlands
23. Gene Expression Team, European Molecular Biology Laboratory, EMBL-European Bioinformatics Institute (EMBL-EBI) , Hinxton, Cambridge , UK
24. Oxford Vaccine Group, Department of Paediatrics, University of Oxford and the NIHR Oxford Biomedical Research Centre , Oxford , UK
25. Division of Pediatrics, University Medical Centre Ljubljana and Medical Faculty, University of Ljubljana , Ljubljana , Slovenia
26. Pediatrics Department, Translational Pediatrics and Infectious Diseases Section , Santiago de Compostela , Spain
27. Genetics–Vaccines–Infectious Diseases and Pediatrics Research Group GENVIP, Instituto de Investigación Sanitaria de Santiago (IDIS), Universidade de Santiago de Compostela (USC) , Santiago de Compostela , Spain
28. Unidade de Xenética, Departamento de Anatomía Patolóxica e Ciencias Forenses, Instituto de Ciencias Forenses, Facultade de Medicina, Universidade de Santiago de Compostela , Galicia , Spain
29. GenPoB Research Group, Instituto de Investigaciones Sanitarias (IDIS), Hospital Clínico Universitario de Santiago (SERGAS) , Galicia , Spain
30. Medical Research Council Unit, The Gambia at the London School of Hygiene and Tropical Medicine , Banjul , Gambia
31. Department of Intensive Care and Neonatology, and Children’s Research Center, University Children`s Hospital Zurich , Zurich , Switzerland
32. Child Health Research Centre, The University of Queensland , Brisbane, Queensland , Australia
33. Division of Pediatric Infectious Diseases, Department of Pediatrics, Dr von Hauner Children’s Hospital, University Hospital, LMU Munich , Munich , Germany
34. Department of Paediatric Infectious Diseases and Immunology, Erasmus MC Sophia Children’s Hospital , Rotterdam , The Netherlands
35. Clinical Research Department, Faculty of Infectious and Tropical Disease, London School of Hygiene and Tropical Medicine , London , UK
36. Department of Pediatrics, Children’s Clinical University Hospital , Rīga , Latvia
37. Department of General Paediatrics, University Clinic of Paediatrics and Adolescent Medicine, Medical University Graz , Austria
38. Department of Microbiology and Immunology, University of Melbourne at The Peter Doherty Institute for Infection and Immunity , Melbourne , Australia