Great Ormond Street Hospital - Department of Paediatric Infectious Diseases, Great Ormond Street Hospital - Department of Paediatric Infectious Diseases, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Microbiology, Virology, and Infection Prevention & Control, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Microbiology, Virology, and Infection Prevention & Control, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Microbiology, Virology, and Infection Prevention & Control, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Microbiology, Virology, and Infection Prevention & Control, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Microbiology, Virology, and Infection Prevention & Control, Great Ormond Street Hospital, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Paediatric Neurology, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Microbiology, Virology, and Infection Prevention & Control, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Microbiology, Virology, and Infection Prevention & Control, University College London - Department of Infection, Inflammation and Immunity, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Microbiology, Virology, and Infection Prevention & Control, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Microbiology, Virology, and Infection Prevention & Control, Great Ormond Street Hospital, Government of the United Kingdom - Barts Health NHS Trust, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Paediatric Neurosurgery, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Paediatric Immunology, Great Ormond Street Hospital - Department of Paediatric Infectious Diseases, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Paediatric Infectious Diseases, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Paediatric Immunology, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Paediatric Haematology and Bone Marrow Transplant, Great Ormond Street Hospital for Children NHS Foundation Trust - Histopathology Department, Great Ormond Street Hospital for Children - Department of Histopathology, University College London - MRC Clinical Trials Unit, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Paediatric Neurology, University College London - Department of Infection, Inflammation and Immunity and University College London - Department of Infection, Inflammation and Immunity

University College London, University of Oxford, University of Oxford, University of Oxford, University of Oxford, University of Oxford, King's College Hospital, King's College Hospital, Great Ormond Street Hospital for Children, University College London, Great Ormond Street Hospital for Children, Great Ormond Street Hospital for Children, Great Ormond Street Hospital for Children, Great Ormond Street Hospital for Children, University College London, King's College Hospital, Great Ormond Street Hospital for Children NHS Foundation Trust - Department of Paediatric Neurology, University of Oxford and Great Ormond Street Hospital for Children