Fig. 23

An immunohistochemical staining of the intestinal treated with an anti-VEGF marker. (A and B) Immunostaining of anti-VEGR marker was observed as staining of epithelial cells lining and the endothelium (En) of blood vessels in the intestine of control fish. (C and D) Immunostaining of anti-VEGR marker in the intestine of infected fish experienced a stronger reaction compared to control. Note the different layers of intestine are epithelium (Ep), lamina propria (Lp) and muscular layer (ML). reactions pointed by arrowheads