Medical Dictionary

ovine progressive pneumonia

noun

medical Definition of ovine progressive pneumonia

:a chronic disease especially of sheep caused by a retrovirus of the genus Lentivirus (species Visna/maedi virus) and occurring in a respiratory form that affects the lungs and udder and produces progressive wasting and in an encephalitic form that affects the central nervous system and joints and leads eventually to paralysis — see maedi, visna

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