1. Department of Pediatrics, Pulmonology, Allergy, Cystic Fibrosis Hôpital Femme Mère Enfant, Hospices Civils de Lyon Bron France
2. Centre International de Recherche en Infectiologie, INSERM U1111, CNRS UMR 5308 Université Lyon 1, ENS de Lyon Lyon France
3. APHM – Pediatric Pulmonology Department, Aix‐Marseille University, INSERM 1263, INRAE 1260, C2VN Marseille France
4. Pediatric Allergy Unit, Department of Pediatrics, Gynecology and Obstetrics University Hospitals of Geneva Geneva Switzerland
5. Department of Pediatric Allergy and Asthma Hacettepe University School of Medicine Ankara Turkey
6. University Hospital of Montpellier Montpellier France
7. Desbrest Institute of Epidemiology and Public Health University of Montpellier – INSERM Montpellier France
8. WHO Collaborating Centre on Scientific Classification Support Montpellier France