University of Freiburg - Institute for Evidence in Medicine, University of Freiburg - Institute for Evidence in Medicine, University of Freiburg - Institute for Evidence in Medicine, University of Freiburg - Institute for Evidence in Medicine, Beijing Yealth Technology Co., Ltd., The Robert Koch Institute, The Robert Koch Institute, Hospital Duran i Reynals (ICO) - Catalan Institute of Oncology, Statens Serum Institut, Université Libre de Bruxelles, The Coombe Hospital, UMF Carol Davila, University of Tartu, Université Libre de Bruxelles, Charles University, Robert Koch Institute, National Institute of Public Health (Slovenia), Finnish Institute for Health and Welfare (THL), Riga Stradins University - Department of Paediatrics, European Centre for Disease Prevention and Control, European Centre for Disease Prevention and Control, Robert Koch Institute - Immunisation Unit and University of Freiburg - Institute for Evidence in Medicine