Studies on bluetongue.  III.  The development of a modified live virus vaccine employing American strains of bluetongue virus.
D000818:Animals; D001819:Bluetongue; D001820:Bluetongue virus; D012756:Sheep; D012757:Sheep Diseases; D014481:United States; D014613:Vaccines, Attenuated; D014777:Virus Diseases
D014613:Vaccines, Attenuated
SHEEP/diseases; VIRUS DISEASES