Division 3

When reference is made to this paragraph, the clinical examination in the holding in question must be carried out on pigs selected at random in the sub-units for which a risk of introduction of classical swine fever virus has been identified or is suspected.

The minimum number of pigs to be examined must allow for the detection of fever if it occurs at a prevalence of 10 % with 95 % confidence in these sub-units.

However, in case of:

• breeding sows, the minimum number of sows to be examined must allow for the detection of fever if it occurs at a prevalence of 5 % with 95 % confidence;

• at semen collection centres, all boars must be examined.