title: The effects of challenge with homologous and heterologous strains of Border disease virus on ewes with previous experience of the disease.
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis; D003711:Demyelinating Diseases / Q000473:pathology / Q000662:veterinary; D001908:Diarrhea Viruses, Bovine Viral / Q000276:immunology; D005260:Female; D005333:Fetus / Q000473:pathology; D011247:Pregnancy; D012328:RNA Viruses / Q000276:immunology*; D012756:Sheep / Q000276:immunology*; D012757:Sheep Diseases / Q000276:immunology* / Q000473:pathology; D014777:Virus Diseases / Q000276:immunology / Q000473:pathology / Q000662:veterinary*
chemical_list: D000914:Antibodies, Viral