Interleukin 10 (IL10) is a multifunctional cytokine mainly produced by Th2 cells, the main function of antigen presentation function for stromal macrophages, through down-regulation of inflammatory cytokines, thereby inhibiting macrophage function during inflammation, inhibit Th1 cell response, inhibition of Th1 cells to produce cytokines IFN-γ, is a kind of cytokines the incidence of tuberculosis, play a role in the pathogenesis of tuberculosis. Here, IFNG is linked to tuberculosis.