Staining for IFN-γ(a TH1 cytokine) indicated that the most intense expression occurred in epithelial cells from the IT (CRS) group (0.46±0.03), while its expression was lower in the non-eosinophilic NP (CRS) group (0.42±0.02) (Figure 1E) than in the IT (CRS), but more intense than that in the IT (CONTROL) group (0.36±0.02). Here, IFNG is linked to congenital rubella syndrome.