IL-17 induces the expression of pro-inflammatory cytokines and chemokines, such as G-CSF, IL-6 and IL-8, promoting recruitment of neutrophils and granuloma formation [48, 49], as well as the expression of other chemokines, including CXCL10 that recruits IFNγ producing cells to the site of infection [50]. The gene discussed is IL17A; the disease is infection.