These Th cells were characterized as being predominantly of the naïve type and to a lesser extent of the effector type and showed a tendency of a reduced expression of TNF-α in both allergy groups, although not reaching statistical significance, and an increased expression of IL-17A in the allergy groups, statistically significant only in the IgEpos group (Fig. 4b,c, S. Table II). This evidence concerns the gene IL17A and Allergy.