University of Oxford - MRC Human Immunology Unit, University of Oxford - The Jenner Institute, University of Oxford - MRC Human Immunology Unit, University of Oxford - MRC Human Immunology Unit, University of Oxford - MRC Human Immunology Unit, UCB - UCB Pharma, UK, UCB - UCB Pharma, UK, UCB - UCB Pharma, UK, University of Oxford - The Jenner Institute, University of Oxford - The Jenner Institute, University of Oxford - The Jenner Institute, University of Oxford - The Jenner Institute, Government of the United Kingdom - Public Health England, University of Oxford - The Jenner Institute, Government of the United Kingdom - Public Health England, Government of the United Kingdom - Public Health England, Government of the United Kingdom - Public Health England, Public Health England - National Infection Service, Imperial College London, Imperial College London, Chang Gung University - Division of Pediatric Infectious Diseases, Hokkaido University - Division of Global Epidemiology, UCB - UCB Pharma, UK, UCB - UCB Pharma, UK, UCB - UCB Pharma, UK, UCB - UCB Pharma, UK, University of Oxford - The Jenner Institute and University of Oxford - MRC Human Immunology Unit