title: Epizootiology of brucellosis in a flock of sheep.
mesh_terms: D000034:Abortion, Veterinary / Q000453:epidemiology*; D000818:Animals; D002002:Brucella / Q000302:isolation & purification; D002006:Brucellosis / Q000453:epidemiology / Q000662:veterinary*; D002007:Brucellosis, Bovine / Q000453:epidemiology; D002417:Cattle; D005260:Female; D011247:Pregnancy; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*; D014481:United States