Table 4.

Histologic findings in moribund animals

Tissue	Diagnosis	Group	1	2	Control
		Virus	+	−	−
		CP-D	+	+	−
		Severity
Bone marrow	Number examined		4	4	4
	No significant lesions		0	0	4
	Atrophy, hematopoietic	Mild	4	3
		Moderate		1
Heart	Number examined		4	4	4
	No significant lesions		0	4	4
	Epicarditis, subacute	Marked	4	3
	Inflammation, subacute	Mild	1
		Moderate	3
	Infarction, myocardial	Moderate	1
Kidney	Number examined		4	4	4
	No significant lesions		0	4	3
	Degeneration/necrosis, tubular	Minimal	1
		Mild	2
		Moderate	1
	Dilation, tubular	Mild			1
Lung	Number examined		4	4	4
	No significant lesions		0	2	4
	Pneumonia, bronchointerstitial	Moderate	1
		Marked	3
	Pleuritis, subacute	Marked	1
	Histiocytosis, alveolar	Minimal		2
Nasal turbinates	Number examined		4	4	4
	No significant lesions		0	4	4
	Exudate, fibrinopurulent	Mild	2
		Moderate	2
Spleen	Number examined		4	4	4
	No significant lesions		0	0	4
	Depletion, lymphoid	Marked	4	4