Histopathologic examination of sections of lung and trachea tissues with H&E stain.

<p>Specimens were derived from the control (low power view, A; high power view, B), OVA (low power view, C; high power view, D), LD (low power view, E; high power view, F), and HD (low power view, G; high power view, H) groups, respectively. Notably, eosinophil infiltration over the perivascular and peribronchiolar areas were enhanced in OVA group, and then attenuated in both BZYQT groups significantly.