1. Laboratory of Food Biotechnology Institute of Food, Nutrition and Health, ETH Zürich Zürich Switzerland
2. Christine Kühne‐Center for Allergy Research and Education (CK‐CARE) Davos Switzerland
3. Division of Respiratory Medicine, Department of Paediatrics Inselspital, University of Bern Bern Switzerland
4. University Children's Hospital Zürich Zürich Switzerland
5. Children's Hospital St. Gallen St. Gallen Switzerland
6. Department of Microbiology, Nutrition and Dietetics Czech University of Life Sciences Prague Czech Republic
7. Swiss Institute of Allergy and Asthma Research (SIAF) University of Zürich Davos Switzerland
8. Laboratory of Toxicology, Institute of Food, Nutrition and Health, ETH Zürich Zürich Switzerland
9. Division of Biological and Chemical Engineering Aarhus University Aarhus Denmark