title: Immunity acquired by sheep from an experimental infection with Haemonchus contortus.
mesh_terms: D000818:Animals; D000906:Antibodies / Q000032:analysis; D005260:Female; D006188:Haemonchiasis / Q000276:immunology / Q000662:veterinary*; D006189:Haemonchus / Q000276:immunology; D007110:Immunity, Active; D012756:Sheep; D012757:Sheep Diseases / Q000276:immunology*; D014252:Trichostrongyloidiasis / Q000662:veterinary*
chemical_list: D000906:Antibodies