Figure 4.
Neutrophils in the alveolar air spaces of uninfected WT or CD18−/− mice and 6 h after intratracheal instillation of E. coli or S. pneumoniae. Emigrated neutrophils were quantitated morphometrically and expressed as the mean ± SEM volume percent of alveolar air space occupied by neutrophils for WT (closed bars) or CD18−/− (open bars) mice. *Significant differences from WT; ‡significant differences from uninfected mice (P <0.05).