Representative photos of the small intestines of adult mice fed with vehicle (A) and Kudoa septempunctata spores (1.35 × 10⁷ spores/mouse) sacrificed at 6 h (B) and 12 h post ingestion (C). Histological findings of the small intestines of all experimental mice revealed no pathological changes in the intestinal villi as well as in the lamina propria of intestines. A–C: Haematoxylin and eosin-staining. Scale bars = 50 μm.