Immunological assessments
SPT (Quintips, standardized peanut extracts and controls; Stallergenes-Greer) and serum/plasma levels of sIgE and sIgG4 to peanut and peanut component (Ara h1, h2, h3, h8 and h9) (ImmunoCAP; Phadia AB, Uppsala, Sweden) were assessed at T0, T2, T3 and T5 timepoints.