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Pig Journal Volume: 55
Publication date: May 2005

Proceedings Section

POLIOENCEPHALOMYELITIS: A CASE REPORT
S.H. Done, C.M. Gaudie, D.A.R. Hannam, P.O.D. Higgins, T. Drew, M. Banks, M.A. Jones and R. Graham

Abstract
A case report of a non-suppurative encephalitis in a group of pigs is described. These initially had a fore limb lameness that progressed to a hind limb lameness with para1ysis. There were no gross lesions and histopathological lesions were restricted to the brain. In the absence of clinical signs and gross or histological lesions of the major epizootics, other potential causes were examined. Diseases not seen in the UK (EMCV, Blue-eye, West Nile virus) were ruled out. The occurrence of the disease in a group of pigs too old to be infected with HEV suggested that the most likely cause of the condition was porcine enterovirus. These are now divided by genetic analysis into three groups (PTV, PEV-A and PEV-B) of which the first is Teschovirus.

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