Studies on the spread of Toxoplasma gondii to sheep.
D000818:Animals; D001715:Bird Diseases / Q000209:etiology; D001717:Birds; D010856:Columbidae; D005260:Female; D011247:Pregnancy; D012756:Sheep; D012757:Sheep Diseases / Q000209:etiology*; D014124:Toxoplasmosis, Animal / Q000209:etiology*