title: Failure to demonstrate Brucella infection in ewes exposed to natural bovine infection.
mesh_terms: D000022:Abortion, Spontaneous / Q000382:microbiology; D000034:Abortion, Veterinary; D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis; D001769:Blood / Q000382:microbiology; D002006:Brucellosis / Q000382:microbiology / Q000662:veterinary*; D002007:Brucellosis, Bovine / Q000453:epidemiology; D002417:Cattle; D003168:Complement Fixation Tests; D005260:Female; D005333:Fetus / Q000382:microbiology; D006386:Hemagglutination Tests; D008892:Milk / Q000382:microbiology; D011247:Pregnancy; D012756:Sheep; D012757:Sheep Diseases / Q000382:microbiology*
chemical_list: D000907:Antibodies, Bacterial