IFNG and congenital rubella syndrome: IFN-γ levels did not differ between normoxic and hypoxic conditions for the IT (CONTROL), eosinophilic and non-eosinophilic NP (CRS), and IT (CRS) groups(Figure 4A), nor did IL-5 levels differ over time among the three groups under normoxic or hypoxic conditions (24 h) (Figure 4B).