Fig. 3

Comparison of cytokine levels among groups. Circulating levels of A TGF-β1, B IL-10, and C IL-35 in serum samples of patients with acute (n = 40) and chronic (n = 19) brucellosis and in healthy controls (n = 30), represented by dots. The horizontal lines in (A–C) represent the median value. Kruskal–Wallis tests were used for comparisons between groups, and Bonferroni correction was applied to compensate for multiple comparisons. TGF-β1 transforming growth factor-beta 1, HC healthy control, Acute acute brucellosis, Chronic chronic brucellosis