It can be seen that ILC1, CD117+ ILC2, ILC3 in TB group all had increased production of IL-17, presenting as the relative frequencies of IL-17+ cells (8.79%, 19.01%, 15.15%, respectively) were several times as much as those in NC group (3.87%, 4.57%, 4.55%, Fig. 2c, e, f, P < 0.0001). Here, IL17A is linked to tuberculosis.