IL-17A expression in nasal epithelial cells was most intense in the IT (CONTROL) group (0.35±0.02) relative to the IT (CRS)(0.19±0.02) and the eosinophilic NP (CRS)(0.17±0.03) groups, and the difference was significant(p<0.05). The gene discussed is IL17A; the disease is congenital rubella syndrome.