1. Section of Allergy and Immunology University of Colorado School of Medicine Aurora Colorado USA
2. Children's Hospital Colorado Aurora Colorado USA
3. Imperial College London UK
4. Comparative Medicine, Messerli Research Institute of the University of Veterinary Medicine Vienna Medical University Vienna Vienna Austria
5. Krefting Research Centre, Institute of Medicine University of Gothenburg Gothenburg Sweden
6. University Children's Hospital Zurich Zurich Switzerland
7. Christine Kühne‐Center for Allergy Research and Education Davos Switzerland
8. Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
9. Université Paris‐Saclay, CEA, INRAE, UMR MTS/SPI/Laboratoire d'Immuno‐Allergie Alimentaire (LIAA), INRA, CEA Université Paris Saclay Gif sur Yvette Cedex France
10. Transylvania University Brasov Romania
11. Pediatric Unit, De Marchi Clinic Fondazione IRCCS Ca' Granda ‐ Ospedale Maggiore Policlinico Milan Italy
12. Dipartimento di Scienze Cliniche e di Comunita, Universita' degli Studi Milan Italy
13. Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
14. Division of Asthma, Allergy and Lung Biology, Department of Paediatric Allergy King's College London London UK
15. Guy's & St Thomas' Hospital London UK
16. APC Microbiome Ireland National University of Ireland Cork Ireland
17. University of Cape Town Cape Town South Africa
18. Dietetic Department Salford Royal NHS Foundation Trust Salford UK
19. Private Practice for Dietary Advice and Nutrition Therapy Munich Germany
20. School of Medicine Griffith University Southport Australia
21. Department of Nutritonal Sciences and Dietetics International Hellenic University Thessaloniki Greece
22. OLVG, Department of Paediatrics Amsterdam the Netherlands
23. Rijnstate Hospital, Department of Paediatrics Arnhem The Netherlands
24. Undergraduate University College Los Angeles Los Angeles California USA
25. Department of Medicine National University of Ireland Cork Ireland
26. School of Microbiology National University of Ireland Cork Ireland