Vaccination
Figure 4: Levels of pulmonary cytokines at 3 days post infection. IFN-α (a) was measured using ELISA; TNF (b) and IFN-γ (c) were measured using Cytometric Bead Array. Data are expressed as median and interquartile range. Medians that do not share a letter are significantly different (p<0.05, Kruskal-Wallis test).