IFN-γ, IL-4, and IL-13 concentrations in the airways were similar between WT and Bcl6ΔCD4 mice (Fig. S3 F), as was eosinophilia (Fig. 4 H); however, airway NK cell frequencies were elevated in Bcl6ΔCD4 mice compared with controls (Fig. 4 I). The gene discussed is IL4; the disease is Increased total eosinophil count.