IL17A and infection: TCRαβ+ and TCRγδ+ T cells are usually antagonistic and modulate inflammation and immune responses via IL-10, IL-17, IFN-γ, and other cytokines during infection with Leishmania (skin), Francisella tularensis (lung), Mycobacterium tuberculosis, simian immunodeficiency virus (SIV), and HIV [57,58,59,60,61,62].