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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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Ovine progressive pneumonia (maedi-visna) in sheep
Veterinary Microbiology, 1988Ovine progressive pneumonia (OPP) is a multi-systemic disease of sheep caused by a nononcogenic exogenous retrovirus belonging to the Lentiviridae subfamily. Characteristics of the disease are chronic lymphocytic pneumonitis, encephalitis, arthritis, mastitis and vasculitis associated with progressive wasting, dyspnea, lameness, indurated udder and ...
Howard D. Lehmkuhl +3 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 Virus Detection in Ovine Third Eyelids
Journal of Comparative Pathology, 2003Maedi-visna is a systemic disease of sheep caused by a lentivirus, maedi-visna virus (MVV), which mainly affects the lungs and central nervous system but may also affect the mammary glands, joints and other tissues. The aim of the present study was to determine whether the third eyelid was affected in cases of systemic infection.
CAPUCCHIO, Maria Teresa +5 more
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Maedi-Visna. History and Clinical Description [PDF]
, 1990 Maedi-visna was accidentally introduced into Iceland by importation of a flock of Karakul sheep intended for breeding purposes in the year 1933. A brief description of maedi-visna in Iceland and its eradication is presented. Owing to the insidious onset of maedi the disease was first recognized in 1939 when it already had spread to many flocks in two ...
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2001
El maedi o neumonía progresiva ovina es la principal manifestación clínica de la infección por el virus maedivisna. Aunque la enfermedad se conocía desde antiguo en varios países (Zwoegerziekte, bouhite, ovine progressive pneumonia, etc.), sólo su entrada y rápida expansión en Islandia durante los años treinta generó el interés científico y práctico ...
Juste, J. A., Concha, A. De la
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El maedi o neumonía progresiva ovina es la principal manifestación clínica de la infección por el virus maedivisna. Aunque la enfermedad se conocía desde antiguo en varios países (Zwoegerziekte, bouhite, ovine progressive pneumonia, etc.), sólo su entrada y rápida expansión en Islandia durante los años treinta generó el interés científico y práctico ...
Juste, J. A., Concha, A. De la
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DNA Vaccines Against Maedi–Visna Virus
2016Maedi-visna virus (MVV) is an ovine retrovirus of the Lentivirus genus, responsible for a chronic and progressive disease of sheep with a high prevalence all over the world. Therefore, measures aiming at the control of MVV infection are necessary, and the development of DNA vaccines may be the ideal approach.
Miguel Fevereiro +2 more
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The Origin of Lentivirus Research: Maedi-Visna Virus
Current HIV Research, 2013Maedi and visna are contagious sheep diseases which were introduced into Iceland in 1933 by imported sheep of Karakul breed. Maedi, a slowly progressing pneumonia, and the central nervous system disease visna were shown to be transmissible in sheep and most likely caused by a virus.
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Maedi-visna in indigenous sheep
Veterinary Record, 1984GC Pritchard, JB Spence
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