1 Department of General Paediatrics, Erasmus MC-Sophia Children's Hospital, P.O. Box 2060, 3000 CB, Rotterdam, the Netherlands.
2 Department of Paediatric Infectious Diseases and Immunology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands.
3 Division of Paediatric Infectious Diseases, Dr. Von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany.
4 German Centre for Infection Research, PDZIF Partner Site Munich, Munich, Germany.
5 Institute of Infection, Veterinary and Ecological Sciences Liverpool, University of Liverpool, Liverpool, UK.
6 Alder Hey Children's NHS Foundation Trust, Liverpool, UK.
7 Second Department of Paediatrics, National and Kapodistrian University of Athens, P. and A. Kyriakou Children's Hospital, Athens, Greece.
8 Paediatric Immunology, Infectious Diseases & Allergy, Great North Children's Hospital, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK.
9 Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK.
10 NIHR Newcastle Biomedical Research Centre Based at Newcastle Upon Tyne Hospitals NHS Trust and Newcastle University, Westgate Rd, Newcastle upon Tyne, NE4 5PL, UK.
11 Section of Paediatric Infectious Diseases, Laboratory of Medical Immunology, Radboud Center for Infectious Diseases, Radboud Institute for Molecular Life Sciences, RadboudUMC, Nijmegen, the Netherlands.
12 Paediatric Infectious Diseases and Immunology, Amalia Children's Hospital, RadboudUMC, Nijmegen, the Netherlands.
13 Paediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht, The Netherlands.
14 Section of Paediatric Infectious Diseases, Imperial College, London, UK.
15 Department of General Paediatrics, Medical University of Graz, Graz, Austria.
16 Department of Medicine, Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK.
18 Vaccines, Infections and Paediatrics Research Group (GENVIP), Hospital Clínico Universitario de Santiago de Compostela. Genetics, Santiago de Compostela, Spain.
19 Department of Infectious Diseases and Faculty of Medicine, University Medical Centre Ljubljana, University of Ljubljana, Ljubljana, Slovenia.
20 London School of Hygiene and Tropical Medicine, Faculty of Tropical and Infectious Disease, London, UK.
21 Rīgas Stradiņa universitāte, Department of Paediatrics, Children Clinical University Hospital, Riga, Latvia.
22 Department of General Paediatrics, Erasmus MC-Sophia Children's Hospital, P.O. Box 2060, 3000 CB, Rotterdam, the Netherlands. [email protected].