Table 1.

Clinical scores mid-outbreak

Clinical Score	Number of animals	Paddock Number
0	132#	All
1	12	2, 6*, 7, 8
2	6	5, 7
3	1	5
4	4	5, 6
5	4	5

Distribution of clinical scores following inspection of animals at the mid-outbreak sampling. 0 = No obvious physical or behavioural signs; 1 = Mild behavioural but no obvious physical signs; 2 = Mild physical signs but no obvious behavioural signs; 3 = Mild physical signs combined with mild behavioural signs; 4 = Moderate physical signs combined with moderate behavioural signs; 5 = Obvious and severe physical signs combined with severe behavioural signs. *One serum sample unavailable at the mid-outbreak sampling. ^#One animal died of an unrelated cause.