IL4R and Increased total eosinophil count: The percent eosinophils recovered were comparable between LysMcre+/−/IL4Rαfx/wt (~ 12%) and LysMcre+/+/IL4Rαfx/wt (~ 12%) suggesting that the presence of biallelic cre and inactivation of one allele of IL4Rα does not result in a reduction in BALF eosinophilia (Fig. 4A,B).