1 Department of Paediatrics, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht, the Netherlands.
2 ReSViNET Foundation, Julius Clinical, Zeist, the Netherlands.
3 Infection Control and Antimicrobial Stewardship Unit, University Hospital Würzburg, Würzburg, Germany.
4 Institute for Hygiene and Microbiology, University of Würzburg, Würzburg, Germany.
5 GSK, Wavre, Belgium.
6 Centre for Global Health, Usher Institute, Edinburgh Medical School, University of Edinburgh, Edinburgh, Scotland, UK.
7 MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
8 Department of Infectious Diseases, The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia.
9 Murdoch Children's Research Institute, Melbourne, Victoria, Australia.
10 Department of Virology, Tohoku University Graduate School of Medicine, Sendai, Japan.
11 Programme for Global Health, Royal Institute of International Affairs, Chatham House, London, England, UK.