Back to Search
Start Over
Diagnosis of the nervous form of maedi-visna infection with a high frequency in sheep in Castilla y León, Spain.
- Source :
-
Veterinary Record: Journal of the British Veterinary Association . 2/18/2006, Vol. 158 Issue 7, p230-235. 6p. 5 Color Photographs, 3 Charts, 1 Map. - Publication Year :
- 2006
-
Abstract
- Between 1997 and March 2004, the nervous form, or visna, of maedi-visna infection was diagnosed in 71 of 1631 sheep (4.35 per cent) examined in the Castilla y León region of Spain, of which 634 had shown nervous signs. The presence of the virus was confirmed by immunohistochemistry and in some cases by PCR on frozen-thawed or paraffin-embedded tissue samples. The main clinical signs were hindleg ataxia and paresis, but blindness or nystagmus were also observed. Thirty-three of the affected sheep (46.5 per cent) were two years old or younger. The affected sheep showed variable degrees of a non-suppurative meningoencephalitis, and immunohistochemistry identified positive cells in all cases, with no relation to the intensity of the inflammatory lesion. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00424900
- Volume :
- 158
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Veterinary Record: Journal of the British Veterinary Association
- Publication Type :
- Academic Journal
- Accession number :
- 20054466
- Full Text :
- https://doi.org/10.1136/vr.158.7.230