Dynamics of production of IL-17-related cytokines at different illness phases. Dengue patients were grouped according to illness phase (febrile, defervescence and convalescence) and infection type (primary and secondary). Median values of IL-17A serum levels are shown for primary (A) and secondary dengue infections (B), for IL-17F in primary (C) and secondary (D) infections, for IL-22 in primary (E) and secondary (F) infections and for IL-23 in primary (G) or secondary (H) infections. Individual data are shown and the horizontal line is the median value. Statistical difference is based on the Kruskal–Wallis with Dunn’s multiple comparison post-tests. * p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001.