Messenger RNA (mRNA) was isolated using TRIzol as previously described (39 (link)), and complementary DNA (cDNA) was generated from DNase-treated mRNA using a reverse transcription kit (Life Technologies). Quantitative PCR was performed using EvaGreen master mix (BioRad) or TaqMan primers and universal master mix (Life Technologies) on the Mx3005P system (Agilent Technologies). The primers for il13, gob5, and RSV Large polymerase (L) gene (31 (link)) were purchased from IDT and relative gene expression was determined as 2−ΔΔCT (39 (link)).