1. Department of Pediatrics, University of California San Francisco , San Francisco, California , USA
2. Department of Pediatrics, Children’s Hospital of Philadelphia , Philadelphia, Pennsylvania , USA
3. Department of Epidemiology, University of North Carolina Chapel Hill , Chapel Hill, North Carolina , USA
4. Department of Pediatrics, Yale University School of Medicine , Connecticut , USA
5. Yale Institute for Global Health, Yale University , New Haven, Connecticut , USA
6. Yale Center for Infection and Immunity , New Haven, Connecticut , USA
7. Department of Epidemiology, Yale School of Public Health , New Haven, Connecticut , USA
8. Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital , Houston, Texas , USA
9. Department of Pediatrics, University of Washington, Division of Infectious Diseases, Seattle Children’s Hospital , Seattle, Washington , USA
10. Department of Pediatrics, IRCCS Istituto Giannina Gaslini , Genoa , Italy
11. Department of Infectious Diseases, Hospital Infantil de México Federico Gómez , Mexico City , Mexico
12. Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, University of Cincinnati , Cincinnati, Ohio , USA
13. Division of Infectious Diseases, Department of Pediatrics, University of Michigan and C.S. Mott Children’s Hospital , Ann Arbor, Michigan , USA
14. Division of Infectious Diseases, Boston Children’s Hospital, Harvard Medical School , Boston, Massachusetts , USA
15. Department of Infectious Diseases, Children’s Hospital of Orange County , Orange, California , USA
16. Department of Pediatrics, University of California Irvine , Irvine, California , USA
17. Department of Infectious Diseases, St. Jude Children’s Research Hospital , Memphis, Tennessee , USA
18. Division of Pediatric Infectious Diseases, Johns Hopkins All Children’s Hospital , St. Petersburg, Florida , USA
19. Department of Pediatrics, Children’s Mercy and University of Missouri-Kansas City School of Medicine , Kansas City, Missouri , USA
20. Division of Haematology/Oncology, The Hospital for Sick Children , Toronto , Canada
21. Department of Pediatrics, Children’s Hospital of Pittsburgh of UPMC , Pittsburgh, Pennsylvania , USA
22. Infectious Diseases Unit, 3rd Department of Pediatrics, Aristotle University and Hippokration Hospital , Thessaloniki , Greece
23. Pediatric Infectious Diseases, Children’s Minnesota , Minneapolis, Minnesota , USA
24. National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention , Atlanta, Georgia , USA
25. Pediatric Infectious Diseases and Immunodeficiencies Unit, Hospital Universitari Vall d’Hebron , Barcelona, Catalonia , Spain
26. Centro de Estudios en Infectología Pediátrica, Clínica Imbanaco Grupo Quirónsalud and Universidad del Valle , Cali , Colombia
27. Department of Pediatrics, Oregon Health and Science University and Doernbecher Children’s Hospital , Portland, Oregon , USA
28. Pediatric Infectious Diseases, King Faisal Specialist Hospital and Research Center , Riyadh , Saudi Arabia
29. Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital of Chicago and Northwestern University Feinberg School of Medicine , Chicago, Illinois , USA
30. Department of Pediatrics, University of Texas at Austin and Dell Children’s Medical Center , Austin, Texas , USA
31. Department of Pediatrics, Vanderbilt University Medical Center and Monroe Carell Jr. Children’s Hospital at Vanderbilt , Nashville, Tennessee , USA
32. Department of Pediatrics, University of California San Diego and Rady Children’s Hospital San Diego , San Diego, California , USA
33. Center for Pediatric Infectious Diseases, Cleveland Clinic Foundation , Cleveland, Ohio , USA
34. Department of Pediatrics, University of Colorado School of Medicine and Children’s Hospital Colorado , Aurora, Colorado , USA
35. Instituto de Oncologia Pediatrica–IOP/GRAACC-UNIFESP , São Paulo , Brazil
36. Department of Pediatrics, Medical College of Wisconsin and Children’s Wisconsin , Milwaukee, Wisconsin , USA
37. Division of Pediatric Infectious Diseases, Cohen Children’s Medical Center , New Hyde Park, New York , USA
38. Department of Pediatrics, Stanford University School of Medicine , Palo Alto, California , USA
39. Division of Infectious Diseases and Host Defense Program, Department of Pediatrics, Nationwide Children’s Hospital and The Ohio State University , Columbus, Ohio , USA
40. Doodhadhar Burfani Hospital and Research Institute , Haridwar , India
41. Pediatric Infectious Diseases, Children’s National Health System , Washington, District of Columbia , USA
42. Division of Pediatric Infectious Diseases, Weill Cornell Medicine and Komansky Children’s Hospital , New York, New York , USA
43. Department of Laboratory Medicine, Karolinska Institute , Stockholm , Sweden
44. Department of Pediatrics, University of Utah , Salt Lake City, Utah , USA
45. Department of Microbiology, University of Tartu , Tartu , Estonia
46. Hospital Dr. Luis Calvo Mackenna, Facultad de Medicina, Universidad de Chile , Santiago , Chile
47. Department of Pediatrics, University of Arkansas for Medical Sciences , Little Rock, Arkansas , USA
48. Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania , Philadelphia, Pennsylvania , USA