Fig 2.

RSV-stimulated ILC2 proliferation at day 4 after infection. WT mice were infected with 3 × 10⁶ PFU of RSV strain 01/2-20, and lungs were harvested for flow cytometry at day 4 after infection. Cells were gated for viable IL-13⁺ ILC2s and analyzed for Ki67. A, Representative plots for Ki67 staining. Numbers indicate the percentage of Ki67⁺ ILCs or Ki67⁺IL-13⁺ ILC2s within the gated region. B and C, Total number of Ki67⁺ ILCs (Fig 2, B) and Ki67⁺IL-13⁺ ILC2s (Fig 2, C). Data are plotted as means ± SEMs. N = 13-14 mice per group combined from 2 independent experiments. **P < .01, unpaired t test.