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The biology of maedi-visna virus—An overview
British Veterinary Journal, 1993This review aims to summarize the current understanding of the biology of maedi-visna virus (MVV), the prototype virus of the family lentivirinae. The paper provides a short overview of the historical background to the discovery of MVV. Detailed descriptions of the structure and organization of the MVV genome and of the virion encoded polypeptides are ...
N, Carey, R G, Dalziel
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Studies in epidemiology of maedi/visna in sheep
Research in Veterinary Science, 1979Lambs born to ewes from flocks with a high incidence of maedi/visna were separated from their dams at birth (group 1), or after 10 h (group 2), six weeks (group 3) or one year (group 4) and were observed for periods of up to eight years. Group 1 lambs remained free of infection while 28 per cent, 76 per cent and 81 per cent respectively of lambs in the
G F, De Boer +3 more
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Maedi-Visna and Ovine Progressive Pneumonia
Veterinary Clinics of North America: Food Animal Practice, 1997Maedi-Visna and ovine progressive pneumonia are disease of sheep that are caused by ovine lentivirus and characterized by chronic inflammation of the lungs, mammary glands, joints, and central nervous system. Although tremendous progress in research has led to a better understanding of the pathogenesis of these diseases, many questions still remain ...
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Cross Neutralization of Maedi‐Visna Virus Strains*
Zentralblatt für Veterinärmedizin Reihe B, 1984SummaryCross‐neutralization of four Norwegian, two Icelandic and one Danish maedi‐visna virus strains was carried out with a panel of sheep antisera. Sheep antiserum to visna virus glycoprotein was the only one that did not show cross‐neutralization. The other sera showed varying degrees of cross‐reactivity.
B, Hyllseth, H J, Larsen
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The occurrence of maedi-visna virus in Lebanon.
Revue scientifique et technique (International Office of Epizootics), 2017Maedi-visna (MV) is a chronic viral disease prevalent in adult sheep that is caused by a virus belonging to the small ruminant lentivirus group (SRLV). This disease is considered to affect the international trade of sheep and is classified in the World Organisation for Animal Health (OIE) list of notifiable animal diseases.
Tabet, E. +3 more
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Changes to the SAC's maedi‐visna accreditation scheme
Veterinary Record, 2008SIR, — The Scottish Agricultural College (sac) has examined the maedi-visna (mv) accreditation scheme, together with industry representatives, in an effort to make it less expensive in view of the severe financial pressures faced by the sheep industry.
Barti, Synge +2 more
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Epizootiology of Maedi/Visna in Sheep
1979‘Maedi’ (progressive interstitial pneumonia) and ‘visna’ (meningo-leucoencephalitis) are slowly progressive non febrile contagious diseases of sheep. In the late thirties both conditions (maedi=dyspnoea and visna=wasting) were observed for the first time in Iceland and were considered to be two different diseases. In the same period jaagsiekte or sheep
G. F. de Boer, D. J. Houwers
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Maedi - Visna. Pathology and Pathogenesis
1990Infection of sheep with maedi-visna virus (MVV) causes a multi-organ disease, i.e. encephalitis, pneumonia, mastitis and arthritis. Both the spectrum of organ changes and the character of pathological lesions are similar to that observed in the related lentiviral infection of goats. The tissue tropism of infection with human immunodeficiency virus (HIV)
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