Neutralization of visna virus by antisera from sheep.
D000818:Animals; D007106:Immune Sera; D012756:Sheep; D012757:Sheep Diseases; D034561:Sheep, Domestic; D014777:Virus Diseases; D014790:Visna-maedi virus
D007106:Immune Sera
IMMUNE SERUMS; SHEEP DISEASES; VIRUS DISEASES