Figure 5.

The effects of co-infection on immune-cell populations in the lungs. On day 7 post-infection, mice were sacrificed, and lung immune cells were stained with anti-CD4 (A), anti-CD8 (B), anti-CD19 (C) and anti-CD11B (D) antibodies and analyzed by flow cytometry. Results represent mean pooled values +/− SEM from two independent experiments. Asterisks denote significant differences among the control, co-infected and singly-infected groups (* p < 0.05, ** p < 0.005, *** p < 0.0005); ns = not significant. Comparison among groups was performed using the nonparametric test (two independent variables: Mann–Whitney).