Effects of housing on the incidence of visna/maedi virus infection in sheep flocks [PDF]
Research in Veterinary Science, 2010 The incidence of seroconversion to visna/maedi virus (VMV) infection and its relationship with management and sheep building structure was investigated in 15 dairy sheep flocks in Spain during 3-7years. Incidence rates were 0.09 per sheep-year at risk in semi-intensive Latxa flocks and 0.44 per sheep-year at risk in intensive Assaf flocks and was ...
Leginagoikoa, Iratxe +8 more
openaire +4 more sources
Pestivirus apparent prevalence in sheep and goats in Northern Ireland: A serological survey
Veterinary Record, Volume 188, Issue 1, January 2021., 2021 Abstract Background: Bovine viral diarrhoea virus (BVDV) and border disease virus (BDV) can cause significant health problems in ruminants and economic impacts for farmers. The aim of this study was to evaluate pestivirus exposure in Northern Ireland sheep and goat flocks, and to compare findings with a previous study from the region. Methods: Up to 20
Emma Campbell +10 more
wiley +1 more source
Genetic evaluation of small ruminant lentivirus susceptibility in Valais blacknose sheep
, 2021 Animal Genetics, Volume 52, Issue 5, Page 781-782, October 2021.
Anna Letko +5 more
wiley +1 more source
Characterization of the lymphocytic alveolitis in visna-maedi virus-induced interstitial lung disease of sheep [PDF]
Clinical and Experimental Immunology, 1992 SUMMARYIn order to investigate the contribution of lymphocytes to interstitial lung disease in animals with visna-maedi infection, we studied in parallel bronchoalveolar cells and lung tissue from slaughterhouse animals (n = 29) and from colostrum-deprived lambs transtracheally inoculated with field isolates of visna-maedi virus (n = 9) or saline (n ...
J L Cadore +5 more
openaire +3 more sources
Presencia de infección y lesiones mínimas en mama y otros tejidos en ovinos afectados de Maedi-Visna [PDF]
, 2016 5 páginas, 2 tablas.--Trabajo presentado al: XL Congreso Nacional y el XVI Congreso Internacional de la Sociedad Española de Ovinotecnia y Caprinotecnia.
Balseiro, Ana +5 more
core +1 more source
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.
Cyril Barbezange +3 more
openaire +3 more sources
Experimental infection of sheep with visna/maedi virus via the conjunctival space
Journal of General Virology, 2008 Experiments were performed to determine whether visna/maedi virus (VMV), a small ruminant lentivirus (SRLV), could infect sheep via ocular tissues. The EV1 strain of VMV was administered into the conjunctival space of uninfected sheep, and the animals monitored for the presence of provirus DNA and anti-VMV antibodies in blood.
Niesalla, Heide +4 more
openaire +4 more sources
Evolution of specific antibodies and proviral DNA in milk of small ruminants infected by small ruminant lentivirus [PDF]
, 2013 The diagnosis of Small Ruminant Lentivirus (SRLV) is based on clinical signs, pathological lesions and laboratory testing. No standard reference test for the diagnosis of maedi visna has been validated up to the present, and it is puzzling that tests ...
Arjona, Alvaro +6 more
core +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.
Benedikta S. Haflidadóttir +6 more
openaire +2 more sources
Perivascular inflammatory cells in ovine Visna/maedi encephalitis and their possible role in virus infection and lesion progression [PDF]
Journal of NeuroVirology, 2012 We examined the distribution in the perivascular spaces of Visna/maedi antigen, T cells (CD3+, CD4+ and CD8+), B cells and macrophages by immunohistochemistry in 22 natural cases of Visna/maedi encephalitis. Sheep showed lymphocytic or histiocytic lesions.
Polledo, Laura +5 more
openaire +4 more sources