Results 1 to 10 of about 3,079 (166)

Characterization of minimal lesions related to the presence of visna/maedi virus in the mammary gland and milk of dairy sheep. [PDF]

BMC Vet Res, 2019
[EN] Background: In order to characterize the complete range of lesions, especially minimal, affecting mammary gland and viral antigen distribution and target cells using immunohistochemistry in naturally Visna/maedi (VM) 84 infected sheep were studied ...
Gayo E, Polledo L, Magalde A, Balseiro A, García Iglesias MJ, Pérez Martínez C, Preziuso S, Rossi G, García Marín JF.   +8 more
europepmc   +11 more sources

The First Genomic Analysis of Visna/Maedi Virus Isolates in China. [PDF]

Front Vet Sci, 2022
Visna/Maedi virus (VMV) is a neglected pathogen that damages sheep and goats' nervous and respiratory systems. The virus was discovered 80 years ago and has been endemic in China for nearly four decades; nevertheless, there is little information regarding Chinese isolates' genotypes and genomic characteristics.
Wu JY, Mi XY, Yang XY, Wei J, Meng XX, Bolati H, Wei YR.   +6 more
europepmc   +4 more sources

Ovine TRIM5α can restrict visna/maedi virus. [PDF]

J Virol, 2012
ABSTRACT The restrictive properties of tripartite motif-containing 5 alpha (TRIM5α) from small ruminant species have not been explored. Here, we identify highly similar TRIM5α sequences in sheep and goats. Cells transduced with ovine TRIM5α effectively restricted the lentivirus visna/maedi virus DNA synthesis.
Jáuregui P, Crespo H, Glaria I, Luján L, Contreras A, Rosati S, de Andrés D, Amorena B, Towers GJ, Reina R.   +9 more
europepmc   +8 more sources

Role of alveolar macrophages in respiratory transmission of visna/maedi virus. [PDF]

J Virol, 2008
ABSTRACTA major route of transmission ofVisna/maedi virus(VMV), an ovine lentivirus, is thought to be via the respiratory tract, by inhalation of either cell-free or cell-associated virus. In previous studies, we have shown that infection via the lower respiratory tract is much more efficient than via upper respiratory tissues (T. N.
McNeilly TN, Baker A, Brown JK, Collie D, Maclachlan G, Rhind SM, Harkiss GD.   +6 more
europepmc   +6 more sources

Identification of the ovine mannose receptor and its possible role in Visna/Maedi virus infection. [PDF]

Vet Res, 2011
Abstract This study aims to characterize the mannose receptor (MR) gene in sheep and its role in ovine visna/maedi virus (VMV) infection. The deduced amino acid sequence of ovine MR was compatible with a transmembrane protein having a cysteine-rich ricin-type amino-terminal region, a fibronectin type II repeat, eight tandem C-type lectin ...
Crespo H, Reina R, Glaria I, Ramírez H, de Andrés X, Jáuregui P, Luján L, Martínez-Pomares L, Amorena B, de Andrés DF.   +9 more
europepmc   +9 more sources

Multiple infections of zoonotic pathogens in wild Brandt's voles (Lasiopodomys brandtii). [PDF]

Vet Med Sci, 2023
Our research revealed the viral and bacterial diversity in wild Brandt's voles. The characterization and distinctive lineage of some rodent‐specific viruses (Cytomegalovirus, PestVs and Lentiviruses) and rodent‐borne bacteria (Leptospira interrogans and Vibrio cholerae) indicates that wild Brandt's voles may harbor a diversity of viruses and bacteria ...
Guo Y, Li Z, Dong S, Si X, Ta N, Liang H, Xu L.   +6 more
europepmc   +2 more sources

Seroprevalence of Visna-Maedi Virus (VMV) and Border Disease Virus (BDV) in Van province and around [PDF]

Arquivo Brasileiro De Medicina Veterinaria E Zootecnia, 2018
ABSTRACT The present study investigated the seroprevalance of Visna Maedi Virus (VMV) and Border Disease Virus (BDV) infections in sheeps in regions in and around Van province, Turkey. Sample materials were taken from 360 sheep sent to slaughterhouses around Van.
Ameen, P. S. Mohammad, Karapınar, Zeynep   +1 more
exaly   +9 more sources

Visna in a UK flock and the biosecurity risk arising from the onward sale of likely infected pedigree stock [PDF]

Veterinary Record Case Reports, Volume 9, Issue 3, September 2021., 2021
Abstract Small ruminant lentivirus infections in sheep most commonly present with respiratory signs (maedi) and indurative mastitis, while primary neurological signs (visna) have rarely been reported in Great Britain (GB). Most reports of visna describe signs referable to myelitis, although central signs associated with encephalitis may feature.
Caldow, George L, Del-Pozo, Jorge, Evans, Michael, Kelly, Rob, Sargison, Neil, Scholes, Sandra   +5 more
core   +3 more sources

Ovine Progressive Pneumonia: Diagnosis and Seroprevalence in the South of Sonora, Mexico. [PDF]

Case Rep Vet Med, 2021
Ovine progressive pneumonia (OPP) is the most severe presentation of small ruminant lentivirus (SRLV) infection known as Maedi‐Visna. Serological evidence in Mexico of the presence of this lentivirus was published in 1986. After that, studies revealed that SRLVs have a broad distribution in Mexico by detecting antibodies or/and molecular tests; however,
Borquez Cuevas MY, Hernández Chávez JF, Armenta Leyva B, Cedillo Cobián JR, Molina Barrios RM.   +4 more
europepmc   +2 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 animals into five groups according to the presence (+) or absence (-) of infection by Sc and VMV ...
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   +10 more sources