Diagnosis of clinical cases of the nervous form of Maedi-Visna in 4- and 6-month-old lambs

[EN] The nervous form of Maedi-Visna (MV) infection was diagnosed in four lambs aged 4 and 6 months, belonging to three different Assaf flocks that were managed intensively for milk and meat production. The animals presented with hindleg ataxia that rapidly progressed to complete recumbency. Lesions...

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Bibliographic Details
Authors: Benavides Silván, Julio, García Pariente, Carlos, Ferreras Estrada, María del Carmen, Fuertes Franco, Miguel, García Marín, Juan Francisco, Pérez Pérez, Valentín
Format: article
Status:Published version
Publication Date:2007
Country:España
Institution:Universidad de León
Repository:BULERIA. Repositorio Institucional de la Universidad de León
OAI Identifier:oai:buleria.unileon.es:10612/26790
Online Access:https://bvajournals.onlinelibrary.wiley.com/doi/10.1136/vr.158.7.230
https://hdl.handle.net/10612/26790
Access Level:Open access
Keyword:Sanidad animal
Veterinaria
Maedi-Visna
Lentivirus
Nervous
Sheep
3109 Ciencias Veterinarias
Description
Summary:[EN] The nervous form of Maedi-Visna (MV) infection was diagnosed in four lambs aged 4 and 6 months, belonging to three different Assaf flocks that were managed intensively for milk and meat production. The animals presented with hindleg ataxia that rapidly progressed to complete recumbency. Lesions consisted of a moderate to severe non-purulent encephalitis affecting mainly the cerebellar peduncles. MV virus was demonstrated in the damaged tissues by immunohistochemistry and polymerase chain reaction. The investigation demonstrated that the clinical presentation of the nervous form of MV which is reported to occur in adult sheep can also be observed in young animals