A perspective on Maedi-Visna in South Africa.
Vorster
J H
JH
Dungu
B
B
Marais
L C
LC
York
D F
DF
Williams
R
R
Boshoff
C H
CH
D000818:Animals; D011021:Pneumonia, Progressive Interstitial, of Sheep / Q000473:pathology*; D012756:Sheep; D013019:South Africa; D014790:Visna-maedi virus