Results 11 to 20 of about 3,418 (203)

Association of Maedi Visna virus with Brucella ovis infection in rams

European Journal of Histochemistry, 2009
Maedi Visna Virus (MVV) is the etiological agent of a systemic disease of sheep, which causes lesions in lungs, the central nervous system, joints, and mammary glands.
S Preziuso, E Sanna, MP Sanna, C Loddo, D Cerri, E Taccini, F Mariotti, G Braca, G Rossi   +8 more
doaj   +3 more sources

Mutational analysis of a principal neutralization domain of visna/maedi virus envelope glycoprotein.

Journal of General Virology, 2008
We have shown previously that a type-specific neutralization domain is located within a 39 aa sequence in the fourth variable domain of gp135 in visna/maedi virus. We now show that neutralizing antibodies detected early in infection are directed to this epitope, suggesting an immunodominant nature of this domain.
B. S. Haflidadóttir, S. Matthíasdóttir, G. Agnarsdóttir, S. Torsteinsdottir, G. Pétursson, Ó. Andrésson, V. Andrésdóttir   +6 more
semanticscholar   +3 more sources

Detection of PrPSc in lung and mammary gland is favored by the presence of Visna/maedi virus lesions in naturally coinfected sheep. [PDF]

Vet Res, 2010
There are few reports on the pathogenesis of scrapie (Sc) and Visna/maedi virus (VMV) coinfections. The aim of this work was to study in vivo as well as post mortem both diseases in 91 sheep. Diagnosis of Sc and VMV infections allowed the distribution of
Salazar E, Monleón E, Bolea R, Acín C, Pérez M, Alvarez N, Leginagoikoa I, Juste R, Minguijón E, Reina R, Glaria I, Berriatua E, de Andrés D, Badiola JJ, Amorena B, Luján L.   +15 more
europepmc   +2 more sources

A census to determine the prevalence and risk factors for caprine arthritis-encephalitis virus and visna/maedi virus in the Swiss goat population. [PDF]

Preventive Veterinary Medicine, 2017
In Switzerland, viruses belonging to two different phylogenetic groups of small ruminant lentiviruses (SRLV) are currently circulating: the caprine arthritis-encephalitis virus (CAEV) and visna/maedi virus (VMV). In the past two decades, a mandatory national control program has led to a very low prevalence of seropositivity, while completely ...
B. Thomann, L. Falzon, G. Bertoni, H. Vogt, G. Schüpbach-Regula, I. Magouras   +5 more
semanticscholar   +3 more sources

Mapping and characterization of visna/maedi virus cytotoxic T-lymphocyte epitopes.

Journal of General Virology, 2008
CD8+cytotoxic T-lymphocyte (CTL) responses have been shown to be important in the control of human and simian immunodeficiency virus infections. Infection of sheep with visna/maedi virus (VISNA), a related lentivirus, induces specific CD8+CTLin vivo, but the specific viral proteins recognized are not known.
Changxing Wu, C. Barbezange, I. Mcconnell, B. Blacklaws   +3 more
semanticscholar   +3 more sources

Maedi-Visna virus: current perspectives

Veterinary Medicine: Research and Reports, 2018
Esperanza Gomez-Lucia, Nuria Barquero, Ana Domenech Department of Animal Health, Faculty of Veterinary Medicine, Complutense University, Madrid, Spain Abstract: Maedi-Visna virus (MVV) and caprine arthritis-encephalitis virus are commonly known as small ...
Gomez-Lucia E, Barquero N, Domenech A
doaj   +3 more sources

Isolement et étude d'une souche de virus Visna-Maedi chez le mouton en France [PDF]

Bulletin de l'Académie Vétérinaire de France, 1980
This work relates the isolation, for the first time in France, of a strain of the Visna-Maedi virus. This strain has been obtained from a mixed culture of choroid plexus cells and leucocytes of a clinically attacked ewe. The works-abready realized and the ones in progress point out the importance of the disease in our country.
Pierre Russo, A. Giauffret, M Lasserre, C. Sarrazin   +3 more
openalex   +4 more sources

Epidemiology and control of maedi-visna virus: Curing the flock

PLoS ONE, 2020
Maedi-visna (MV) is a complex lentiviral disease syndrome characterised by long immunological and clinical latencies and chronic progressive inflammatory pathology.
Andrew W. Illius, Karianne Lievaart-Peterson, Tom N. McNeilly, Nicholas J. Savill, Stephen Raverty   +4 more
doaj   +3 more sources

Visna/maedi virus serology in sheep: survey, risk factors and implementation of a successful control programme in Aragón (Spain). [PDF]

The Veterinary Journal, 2010
A serological survey of Visna/maedi virus (VMV) infection involving 274,048 sheep from 554 flocks was undertaken during 2002-2007 in Aragón, North-East Spain. One hundred and two of these flocks enrolled in a VMV control programme to reduce seroprevalence by selecting replacement lambs from seronegative dams and gradual culling of seropositive sheep ...
M. Pérez, E. Biescas, X. de Andrés, I. Leginagoikoa, E. Salazar, E. Berriatua, R. Reina, R. Bolea, D. de Andrés, R. Juste, J. Cancer, J. Gracia, B. Amorena, J. Badiola, L. Luján   +14 more
semanticscholar   +4 more sources

Association of CD80 and CD86 Expression Levels with Disease Status of Visna/Maedi Virus Infected Sheep

Viral Immunology, 2007
In small ruminant lentivirus infections, cellular immune responses are diminished in clinically affected animals. The underlying mechanisms for this are unknown. In this study, we tested the hypothesis that alterations in expression of the co-stimulatory molecules B7-1 and B7-2 are involved in infections with Visna/Maedi virus (VMV), the prototype ...
R. Reina, I. Glaria, J. Benavides, X. de Andrés, H. Crespo, C. Solano, V. Pérez, L. Luján, Marta Pérez, J. M. P. de la Lastra, S. Rosati, B. Blacklaws, G. Harkiss, D. de Andrés, B. Amorena   +14 more
semanticscholar   +5 more sources