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LSI e-Catalogue 2012 Veterinary Diagnostic Kits Elisa, PCR and BVD (English) |
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e-Catalogue LSI 2012 des kits de diagnostic vétérinaire Elisa, PCR et BVD (FR) |
Epizootic haemorrhagic disease (EHD) is a vector-borne infectious disease caused by a virus belonging to the Orbivirus genus of the Reoviridae family (like the bluetongue virus). Between eight and ten different serotypes have been identified. The EHD virus can infect bovines and can cause symptoms similar to those of bluetongue i.e. fever, erosive lesions and ulcers of the oropharyngeal mucosae, stiffness, collapse and cutaneous oedema. In gestating cows, infection can induce abortion or hydranencephaly if the infection appears between 70 and 120 days of gestation. The virus is more or less exclusively transmitted by the bite of a small haematophagous dipteran of the genus Culicoides in the Ceratopogonidae family. The vector becomes infected when it feeds on an infected animal and then the virus replicates until it reaches the density necessary for transmission to another susceptible animal.