Figure 5
Influx of inflammatory cells in the upper airways. Mice were exposed to CS or air for 3 months and intranasally inoculated with NTHi or S. pneumoniae (S.p.). Numbers of total immune cells (A), neutrophils (B) and macrophages (C) were determined in upper airway lavages 24 hours (NTHi) and 4 days (S.p.) postinoculation. Data are shown as mean ± SEM. Bars indicate significant differences of *p < 0.05 and **p < 0.01, n ≥ 5 per group.