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 College London - Department of Infection, Inflammation and Immunity, University College London - Institute for Global Health, University College London - Department of Infection, Inflammation and Immunity, King's College London - Centre for Clinical Infection and Diagnostics Research, University of Portsmouth, Advanced Pathogen Diagnostics Unit, University College London Hospitals NHS Foundation Trust, King's College London - Centre for Clinical Infection and Diagnostics Research, University of Glasgow - Medical Research Council (MRC), University College London - Division of Infection and Immunity, Government of the United Kingdom - Portsmouth Hospitals University NHS Trust, Bart's Health NHS Trust - Division of Infection, Bart's Health NHS Trust - Division of Infection, Bart's Health NHS Trust - Division of Infection, St. George’s University of London - Institute for Infection and Immunity, University of Glasgow - Medical Research Council (MRC), University of Sheffield - Sheffield Biomedical Research Centre, University Hospitals NHS Foundation Trust - Southampton Specialist Virology Center, Imperial College London - Section of Infectious Diseases and Immunity, University College London - Department of Infection, Inflammation and Immunity, NHS Foundation Trust - Department of Microbiology, Government of the United Kingdom - Royal Free London NHS Foundation Trust, NHS Foundation Trust - Southampton Specialist Virology Centre, Government of the United Kingdom - Sheffield Teaching Hospitals, University College London - Department of Genetics & Genomic Medicine, Independent, Independent, University College London - Institute for Global Health, Bart's Health NHS Trust - Division of Infection, University College London - Institute for Clinical Trials and Methodology, Health Data Research UK, Imperial College London - Section of Adult Infectious Disease, University of Glasgow - Medical Research Council (MRC), Government of the United Kingdom - Royal Free London NHS Foundation Trust, King's College London - Centre for Clinical Infection and Diagnostics Research, University College London Hospitals NHS Foundation Trust - Advanced Pathogen Diagnostics Unit, Government of the United Kingdom - Sheffield Teaching Hospitals, St. George’s University of London - Institute of Infection & Immunity, Imperial College London - Imperial College Healthcare NHS Trust, University of Portsmouth, University of Southampton - University Hospital Southampton NHS Foundation Trust, University College London Hospitals NHS Foundation Trust - Department of Clinical Virology, University of Sheffield - Department of Infection, Immunity & Cardiovascular Disease, King's College London - Centre for Clinical Infection & Diagnostics Research, MRC-University of Glasgow Centre for Virus Research, St. George’s University of London - Institute of Infection & Immunity and University College London - Department of Infection, Inflammation and Immunity