IFN-γ levels in asthmatic/A(H1N1)pdm09 mice significantly increased to 240.4 pg/mL by 3 days post-infection, which was the highest among all mice at this time point (vs. control/A(H1N1)pdm09, p = 0.007; vs. asthma/seasonal, p = 0.002; vs. control/seasonal, p = 0.001), and then levels increased to 651.5 pg/mL at 7 days post-infection (p = 0.001). Here, IFNG is linked to infection.