aAsthma Center and Allergy Unit, Center for Hyper-eosinophilic dysimmune conditions, Integrated University Hospital of Verona

bDepartment of Medicine, University of Verona, Verona, Italy

cUniversity Hospital of Reims, Laboratory of Immunology

dINSERM UMR-S 1250 P3CELL, University of Reims, Reims, France

Correspondence to Marco Caminati, Asthma Center and Allergy Unit, Integrated University Hospital of Verona, Verona, piazzale A Scuro 37126 Verona, Italy. Tel: +39 3289582878; e-mail: [email protected]