title: Protection against bovine leukemia virus infection in sheep by active and passive immunization.
mesh_terms: D000818:Animals; D007114:Immunization / Q000662:veterinary*; D007116:Immunization, Passive / Q000662:veterinary*; D007074:Immunoglobulin G / Q000276:immunology; D007938:Leukemia / Q000517:prevention & control / Q000662:veterinary*; D001909:Leukemia Virus, Bovine / Q000276:immunology; D012756:Sheep / Q000276:immunology / Q000382:microbiology
chemical_list: D007074:Immunoglobulin G