Concurrent maedi-visna virus infection and pulmonary adenomatosis in a commercial breeding flock in East Anglia
Pritchard, G.C.; Done, S.H.
Veterinary Record 127(8): 197-200
1990
ISSN/ISBN: 0042-4900 PMID: 2238421 Document Number: 366259
The seroprevalence of maedi-visna virus infection in thin potential cull ewes aged over two years in a flock in East Anglia increased from 3.7% in August 1985 to 39.0% in September 1987 and 93.3% in May 1989. This increase coincided with the first appearance of sheep pulmonary adenomatosis in the flock. Four emaciated ewes which were dyspnoeic were necropsied between 1987 and 1989. Maedi and pulmonary adenomatosis were confirmed histologically in one of these ewes and pulmonary adenomatosis was confirmed in the other three.