Interestingly, neutralizing autoantibodies against Th17 cell cytokines IL-17A, IL-17F, and IL-22 have been reported in chronic mucocutaneous candidiasis (CMC) patients with autoimmune polyendocrinopathy syndrome-1 (APS-1) or thymoma [36], [37]. Here, IL17F is linked to chronic mucocutaneous candidiasis.