Abortion in ewes caused by Salmonella derby.
D000034:Abortion, Veterinary / Q000209:etiology*; D000818:Animals; D005243:Feces / Q000382:microbiology; D005260:Female; D005333:Fetus / Q000382:microbiology; D010920:Placenta / Q000382:microbiology; D011247:Pregnancy; D012475:Salmonella / Q000302:isolation & purification; D012481:Salmonella Infections, Animal / Q000150:complications*; D012756:Sheep; D012757:Sheep Diseases / Q000209:etiology*