FIG. 1.

Influence of CEF on the differential count of macrophages (A) and PMNs (B) recovered in BAL fluid, as well as on the total amount of cells actively involved in phagocytosis (fluorescent cells), after intranasal inoculation of mice with 10⁷ heat-killed FITC-labeled K. pneumoniae cells. CEF was administered s.c. twice daily at 30 mg/kg from 4 days before until 8 h after infection. Data are means ± SEM for five determinations. ∗, P < 0.05; ∗∗, P < 0.01; both between CEF-treated and untreated animals.