Figure 4

Effects of B. adusta on infiltration of inflammatory cells in the airway. No pathologic changes in the lungs of the control (A). Slight infiltration of eosinophils and lymphocyte in the submucosa of airway exposed to B.ad 8 alone (B). No pathologic changes in the airway and in the alveoli exposed to H-ASD alone (C) H-ASD + B.ad 2 caused mild accumulation of lymphocytes in the submucosa of airway (C). Mild to moderate eosinophils, neutrophils and lymphocytes in the submucosa of airway exposed to H-ASD + B.ad 8 (D). Very slight infiltration of eosinophil and lymphocytes in the submucosa in the airway (E). Mild to moderate infiltration of eosinophils, neutrophils and lymphocytes in the submucosa of airway exposed to OVA + B.ad 8 (F). Mild infiltration of eosinophils, neutrophils and lymphocytes in the submucosa of airway exposed to OVA + H-ASD (G). Marked infiltration of eosinophils, neutrophils and lymphocytes in the submucosa of airway exposed to OVA + H-ASD + B.ad 8 (H). (A–H) HE stain; bar = 50 μm.