IL1B and infection: Similarly, IL-1β protein was significantly elevated post infection in both non-CF (4.4 ± 2.3 pg/mL vs. 20.9 ± 9.9 pg/mL; p < 0.05) and CF AEC (3.9 ± 3.6 pg/mL vs. 24.2 ± 18.7 pg/mL; p < 0.05) (Figure 2B) supernatant when compared to controls.