[Incidence of bluetongue reported in sheep in the U.S.A. during the calendar year 1964].
D000818:Animals; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*; D014481:United States; D014777:Virus Diseases / Q000662:veterinary*
Fréquence de la fièvre catarrhale du mouton aux Etats-Unis pendant l'année 1964.