Ovine -Border Disease aka Hairy Shaker dz

Question 1

Is Border disease viral/fungal/bacterial?

Answer 1

viral (pestivirus)

-related to BVD and classic swine fever

Question 2

Border disease is a problem if it is acquired early/mid/late pregnancy?

Answer 2

early pregnancy

Question 3

What are the clinical signs of Border dz?

Answer 3

• fetal resorption
• death
• congenital abnormalities (underweight lambs, muscle tremors, hairy fleece)
• outbreaks of poor fertility

Question 4

What are the pathologic findings of Border dz?

Answer 4

• cerebral cavitations

- glial cell hyperplasia and demyelination of CNS white matter

Question 5

Treatment/prevention of Border dz?

Answer 5

• no effective tx
• available vaccines for BVD are not effective (differing antigens)
• affected lambs that survive should not be used for breeding