What causes border disease?
Border disease is caused by infection of the fetus in early pregnancy with border disease virus (Pestivirus D), a pestivirus (Flaviviridae) closely related to the viruses of classical swine fever Classical Swine Fever read more (Pestivirus C) and bovine viral diarrhea/mucosal disease.
How can you prevent border disease?
Control and Prevention of Border Disease Ideally bought-in breeding stock should come from border disease free flocks and any bought-in ewes should be tupped separately and kept apart from the main flock until lambing time.
What causes hairy shaker lambs?
(Hairy Shaker Disease) Border disease (Britain) or hairy shaker disease (Australia and New Zealand) is a congenital disorder of lambs characterized by low birth weight and viability, poor conformation, tremor, and an excessively hairy birth coat resulting from in-utero infection with a pestivirus.
What are the symptoms of Louping ill?
Louping-ill (/ˈlaʊpɪŋɪl/) is an acute viral disease primarily of sheep that is characterized by a biphasic fever, depression, ataxia, muscular incoordination, tremors, posterior paralysis, coma, and death.
How is border disease spread?
It is closely related to Bovine Viral Diarrhoea Virus (BVDV) of cattle, and there can be cross-infection of both viruses between cattle and sheep. The BDV is spread by contact with bodily secretions. When a non-pregnant animal comes into contact with the virus, it causes a transient viral infection.
What is CLA in sheep?
Caseous lymphadenitis (CLA), so called because of the chronic abscesses which occur in the superficial lymph nodes is a worldwide disease of sheep, goats, cattle, horses and more rarely man.
What is bluetongue in sheep?
Bluetongue is a non-contagious, viral disease spread by biting insects. It affects species of ruminants, particularly sheep. Bluetongue causes many different symptoms in affected animals, including ulcers, sores, painful hooves, lameness and reproductive problems.
Can humans get Louping ill?
Louping ill disease of sheep has been recognised in Scotland for centuries. It causes encephalitis and is transmitted by the sheep tick, Ixodes ricinus. Human infection was first reported in 1934. Thirty-one cases of human infection have now been described.
Can sheep get pestivirus?
In contrast, pestivirus infections of sheep and goats are relatively uncommon. The emphasis in this document is on infections in cattle but other species are mentioned where relevant. Bovine pestivirus or bovine viral diarrhoea virus (BVDV) is ubiquitous in the cattle population.
What is border disease?
Border disease is caused by Pestivirus D, formerly called Border disease virus, in the family Flaviviridae. Although it is the same virus causing the disease, the name was officially changed in 2018 by the International Committee on Taxonomy of Viruses.
What is border disease in sheep called?
Border Disease in Sheep. Also known as: Hairy-shaker Lambs. Border disease is a form of infectious abortion in sheep (Nettleton et al., 1998). On individual farms it can cause serious losses (Sharp and Rawson, 1986).
What is borderborder disease virus (BDV)?
Border Disease Virus (BDV) was isolated from fresh tissues from 3 of the 5 lambs in cell culture by the Virology laboratory. Acute and convalescent serology is currently being performed to further characterize the epidemiology of this outbreak. Pictured are 2 seven-month-old lambs.
What are the symptoms of Border disease in lambs?
Lambs born after in-utero border disease virus infection are characterized by low birth weight and viability, poor conformation, tremor, and an excessively hairy coat. Surviving offspring remain persistently infected and are the primary reservoir for the virus in a susceptible population.