Figure-3.
Kidney of broiler chicken infected with IBV, 1: Degenerated glomeruli 2: swelling of tubular epithelial cells with narrowing lumen, 3: Infiltration of inflammatory cells, 4: Necrosis, sloughing and fibrosis of renal tubules endothelia, 5: Renal interstitial congestion, 6: Normal tissue (Hematoxylin and Eosin staining; bar=100 μm).