title: Spontaneous production and transmission of subgroup E retroviruses in line 15B chickens.
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis; D002478:Cells, Cultured; D002642:Chick Embryo; D002645:Chickens / Q000382:microbiology*; D005260:Female; D008297:Male; D011201:Poultry Diseases / Q000235:genetics / Q000382:microbiology*; D012190:Retroviridae / Q000032:analysis / Q000254:growth & development* / Q000276:immunology; D014764:Viral Proteins / Q000032:analysis; D014777:Virus Diseases / Q000235:genetics / Q000382:microbiology / Q000662:veterinary*
chemical_list: D000914:Antibodies, Viral; D014764:Viral Proteins