This indicates the important role of IL‐17 in regulating innate immune responses and the defense and clearance of pathogens until adaptive immune cells are activated and enter the infection site.[117, 118, 119] Additionally, Treg cells secrete anti‐inflammatory cytokines and can regulate the pro‐inflammatory function of Th1 cells, preventing excessive inflammatory responses and protecting against tissue damage.[120, 121]. The gene discussed is IL17A; the disease is infection.