1. NIHR Global Health Research Unit on Mucosal Pathogens, Division of Infection & Immunity, University College London, London, UK
2. Parasites and Microbes, Wellcome Sanger Institute, Hinxton, UK
3. Darwin College, University of Cambridge, Silver Street, Cambridge, UK
4. Department of Clinical Infection, Microbiology and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
5. Department of Genetics and Genome Biology, University of Leicester, Leicester, UK
6. Medical Research Council Unit The Gambia at London School of Hygiene & Tropical Medicine, World Health Organization, Collaborating Centre for New Vaccines Surveillance, Banjul, Gambia
7. Centers for Disease Control and Prevention, National Center for Immunization and Respiratory Diseases, Division of Bacterial Diseases, Atlanta, GA, USA
8. University College London, Great Ormond Street Institute of Child Health, London, UK