1 Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.
2 Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark.
3 Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg. jacques.zimmer@lih.lu.