Figure 6
ND viral antigen detected by IHC from tissues of geese and chickens. 6A1: Bursa of goose from control group, and dilution buffer was used for primary incubation for negative control, 4dpi; 6A2: IHC stain of the bursa from a goose infected with JS-5-05-Go strain showing intense positive reaction in medulla of the bursal follicles and marked degeneration of lymphocytes in the medullary region, 4dpi; 6A3: IHC stain of the bursa from a chicken infected with JS-5-05-Go strain showing intense positive reaction in medulla of the bursal follicles and marked degeneration of lymphocytes in the medullary region, 4dpi; 6B1: Cecum of goose from control group, and dilution buffer was used for primary incubation for negative control, 2dpi; 6B2: IHC stain of the cecum from a goose infected with JS-5-05-Go strain presenting intense positive reaction in epithelium and glands, 2dpi; 6B3: IHC stain of the cecum from a chicken infected with JS-5-05-Go strain presenting intense positive reaction in epithelium and glands, 2dpi; 6C1: Spleen of goose from control group, and dilution buffer was used for primary incubation for negative control, 4dpi; 6C2: Positive reaction in lymphocytes and macrophages in spleen of a goose infected with JS-5-05-Go, 4dpi; 6C3: Positive reaction in lymphocytes and macrophages in spleen of a chicken infected with JS-5-05-Go, 4dpi.