Table 1.

Description of lesions recorded for scoring of various tissues

Tissue	Lesions
Proventriculus	Degenerative changes of the tips of the mucosal papillae, necrosis of glandular cells and accumulation of exfoliated cells in the lumen of the glands.
Intestine	Increased number of goblet cells (mucous degeneration) and necrosis associated with sloughing of the epithelial cells.
Liver	Dilation of hepatic sinusoids, vacuolar degeneration and fatty changes, coagulative necrosis and proliferation of bile duct cells.
Pancreas	Degeneration and necrosis of glandular acini, degeneration and necrosis of beta cells and proliferation of interlobular ducts.
Kidney	Congestion and haemorrhage, vacuolar degeneration of tubular epithelial cells, coagulative necrosis, sloughing of tubular cells, necrosis of glomeruli and proliferative glomerulitis.
Brain	Swelling of capillary endothelial cells, vacuolization of neurons, neuronal degeneration and necrosis, congestion and haemorrhages in cerebellum and degeneration of Purkinje cells.
Heart	Granular degeneration and infiltration of inflammatory cells.