Figure 7.

Inflammatory cell infiltration in bronchoalveolar lavage fluid 24 hours and 7 days following vector administration. Cells were counted on Giemsa-stained cytospin preparations before, 24 hours and 7 days after vector delivery. Data were expressed as percentage of macrophages, lymphocytes, and neutrophils of the total cells counted. Mean ± SEM, n = 3, *P < 0.05 compared with before vector delivery. Note the relatively small change only in the neutrophil fraction which then diminishes by 7 days.