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Figure 3: Kidney tissue of Iron River brook trout fingerling exhibiting heavy Renibacterium salmoninarum infection. Kidney sections were stained using an anti-Renibacterium salmoninarum antibody based streptavidin immunoperoxidase immunolabeling (Magnification 400). Sections were counterstained with Mayer’s hematoxylin (Blue background) while R. salmoninarum and its antigens were stained red. Notice the involvement of the kidney’s hematopoietic tissues with the kidney tubules devoid antigens.
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