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Effects of E. japonicum on lung tissue morphology. (A) Representative images of hematoxylin and eosin-stained lung tissue. (B) Representative images of Periodic acid-Schiff-stained lung tissue. Scale bar, 50 µm; arrows, eosinophil infiltration; Br, bronchiole; M, mucus secretion; V, vessel. Treatment groups: panel a, control; panel b, ovalbumin; panel c, dexamethasone; panel d, 60 mg/kg/day E. japonicum; panel e, 600 mg/kg/day E. japonicum.
