IFNG and podoconiosis: The levels of IFN-γ were significantly higher in cultures from podoconiosis patients compared to healthy controls in the presence of the mineral kaolinite, with a median value of 2491 pg/mL vs. 384 pg/mL, respectively, p = 0.001, and chlorite, with a median value of 1990 pg/mL vs. 364.2 pg/mL, p = 0.006 (Figure 2A and Figure 2B, respectively).