Immunity in ewes resulting from natural exposure to Vibrio fetus.
D000818:Animals; D005260:Female; D005865:Gestational Age; D011247:Pregnancy; D011270:Pregnancy, Animal; D012756:Sheep; D012757:Sheep Diseases / Q000276:immunology*; D014733:Vibrio / Q000276:immunology; D014735:Vibrio Infections / Q000276:immunology* / Q000662:veterinary