In addition, the finding that CCL26 strongly contributed to discriminating between children with SA and control subjects is also consistent with data showing that CCL26 is a potent chemoattractant for eosinophils (24, 25) and that elevated concentrations of CCL26 in plasma are related to mucosal counts of eosinophils and the severity of eosinophilic disorders, such as atopic dermatitis (26), chronic rhinosinusitis (27), and eosinophilic esophagitis (28). Here, CCL26 is linked to eosinophilic esophagitis.