KIT and congenital rubella syndrome: Analysis of ILCs and granulocytes in NP from CRS and CF patients revealed a positive correlation between ILC2s and the eosinophil to neutrophil ratio in NP, whereas the proportions of CD117+NKp44− ILC3s negatively correlated with this ratio (Fig. 7b) suggesting that ILCs are involved in the recruitment of eosinophils and neutrophils.