IL17A and infection: INF γ, TNFα, IL-2, IL-4, IL-5, IL-6, IL-8, L-10, IL-13, IL-10, TGFβ, IL-17, IL-21, IL-22 IL-23 and IL-26 are produced by Th1/Th2/Tregs/Th17 immune cells produced at the site of infections (Figure 1).