1. Respiratory Department, University Children's Hospital Basel (UKBB), University of Basel
2. Kinder- und Jugendgesundheitsdienst, Medizinische Dienste, Gesundheitsdepartement des Kantons Basel-Stadt, Basel
3. Swiss Tropical and Public Health Institute, Basel, University of Basel, Basel
4. Paediatric Infectious Disease and Vaccinology, Paediatric Pharmacology and Pharmacometrics and Migrant Health Service, UKBB, University of Basel, Basel, Switzerland, Department of Paediatrics, Royal Children's Hospital Melbourne, University of
Melbourne, Melbourne, Victoria, Australia