A: bronchoalveolar lavage (BAL) leukocyte cell differentials in guinea pigs, either naïve (no sensitization or challenge; n = 8) or with intranasal ovalbumin (OVA; 100 mg/ml; n = 7) or intranasal ragweed pollen (RWP; 22 µg; n = 10). Eos, eosinophils; Lymphs, lymphocytes; Macs, macrophages; PMN, polymorphonuclear leukocytes. Values are means ± SE. *P < 0.05 vs. naïve. 0, No cells observed; n.s., not significant. B: total eosinophil counts in naïve (n = 5), RWP-sensitized and -challenged (n = 5), and RWP + fluticasone (Flutic)-treated (100 µg; n = 5) guinea pigs; data are from naïve and RWP-exposed guinea pigs randomly selected from combined experiments to compare with the RWP + fluticasone experiments. Values are means ± SE. *P < 0.05 vs. naïve; vP < 0.05, RWP + fluticasone vs. RWP group.