FIGURE 1.
Gross and histological lesions of CSF-suspected pigs. (A) Diffuse hemorrhage of skin. (B) Epicardium hemorrhage. (C) Infarcts scattered on the edge of spleen. (D) Lymph nodes were hemorrhagic and turgid. (E) Renal cortex was densely covered with petechial hemorrhages. (F) Hemorrhagic spots and ulcer on the surface of gastric mucosa. (G) Lymphocyte infiltration around the small blood vessels in brain. H&E stain, ×400. (H) Proliferation of glial cells in brain. H&E stain, ×200. (I) Histological structure of spleen was disordered and characterized by necrotic lymphocytes and hemorrhage. H&E stain, ×100. (J) Lymphoid nodules showed necrotic lymphocytes and hyperplastic reticular cells and hemorrhage. H&E stain, ×400. (K) The glomerulus and mesenchyme were hemorrhagic. H&E stain, ×200.