title: A new approach to active immunization of sheep by a combined sheep pox and anthrax vaccine.
mesh_terms: D000818:Animals; D000881:Anthrax / Q000276:immunology / Q000662:veterinary*; D001428:Bacterial Vaccines; D011213:Poxviridae Infections / Q000276:immunology / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000276:immunology*; D014765:Viral Vaccines
chemical_list: D001428:Bacterial Vaccines; D014765:Viral Vaccines