All mice neutralized of IFNγ fatally succumbed to WT infection within 20 days, while a ~35% survival rate was observed for mice with abrogated IL-17A signaling either through direct cytokine neutralization (Fig. 2) or IL-17-directed effector cell depletion (i.e., neutrophils (Supplementary Fig. 4D)). The gene discussed is IL17A; the disease is infection.