1. Translational Pediatrics and Infectious Diseases, Hospital Clínico Universitario de Santiago, Santiago de Compostela, Spain
2. Genetics, Vaccines and Infectious Diseases Research Group (GENVIP), Instituto de Investigación Sanitaria de Santiago, Universidad de Santiago, Santiago de Compostela, Spain
3. Pediatric Infectiology and Vaccination, University of Basel Children’s Hospital (UKBB), Basel, Switzerland
4. Vaccine Confidence & Coverage, Public Affairs, Sanofi Pasteur, Lyon, France
5. Independent expert, formerly HELIOS Klinikum Krefeld, Krefeld, Germany