Box plots of serum levels (pg/mL) of cytokines MIP-1β, IL-18, GRO-α, MIF, SCF, SCGF-β, IL-2Rα, SDF-1α, and TRAIL for young children (1–6), children (7–17), and adults (≥18). Whiskers calculated adopting the Tukey method. Outliers not shown. *, **, ***: Kruskal-Wallis test followed by Dunn’s multiple comparison test.