Experimental infection of Bama miniature pigs with a highly virulent classical swine fever virus

Table 3 Average scores for the pathological changes observed in challenged Bama miniature pigs.

Groups	Heart	Liver	Spleen	Lung	Kidney	Stomach	Bladder	Lymph Nodes	Tonsils	Total
A	1.7	2.0	3.0	1.7	2.3	1.3	2.3	2.0	2.3	18.7
B	2.7	2.7	3.0	2.3	2.0	1.7	2.0	2.3	3.0	21.7
C	2.0	2.5	3.0	2.5	2.5	2.0	2.0	2.5	3.0	22.0
D	2.5	2.5	3.0	2.5	2.5	2.5	3.0	2.5	3.0	24.0
E	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Extended scoring systems for clinical symptoms and pathology were used allowing the detailed characterisation of the diseases and lesions (Everett et al., 2010). Heart, liver, spleen, lung, kidney, stomach, bladder, tonsils and lymph nodes were collected from pigs that died from the infection or were euthanised at the end of the trial. Examinations followed standard operational procedures and any observed lesions were recorded. A gross pathological scoring system was used incorporating 10 parameters. Each parameter was scored from 0 (no lesion) to 3 (severe lesion).

ISSN: 1743-422X