Maedi/visna: a review.
A brief history of the occurrence of maedi/visna or maedi/visna related diseases is given. The clinical features and diagnosis are described. Recent experimental work performed in an attempt to resolve the pathogenetic features of slowness and persistence of infection, characteristic of maedi/visna, is covered. A description of the epidemiology is given followed by possible methods of control.
D000818:Animals; D011021:Pneumonia, Progressive Interstitial, of Sheep / Q000175:diagnosis* / Q000453:epidemiology / Q000209:etiology / Q000473:pathology / Q000517:prevention & control / Q000635:transmission; D012756:Sheep; D014790:Visna-maedi virus / Q000145:classification / Q000302:isolation & purification