Border disease PCR

Interpretation of Border Disease Virus PCR Test
A positive PCR result indicates that Border disease virus has been detected. This could represent transient or persistent infection. A second sample collected after 3 weeks is required to prove persistent infection. PI animals should be culled.
A negative PCR result indicates that Border disease virus has not been detected. A negative PCR result excludes persistent infection with Border disease virus and is valid for the entire life of the sheep.

Border Disease virus is the sheep equivalent of BVD. Infection is mainly spread from flock to flock by the movement of persistently infected animals (PIs). Infection of naïve, pregnant ewes can have a range of consequences depending on the timing of exposure; these can include increased barren rates, abortions and the birth of abnormal, weak or PI lambs.