title: Postnatal and prenatal transmission of the bovine leukemia virus under natural conditions.
mesh_terms: D000367:Age Factors; D000818:Animals; D000914:Antibodies, Viral / Q000302:isolation & purification; D002417:Cattle; D002418:Cattle Diseases / Q000382:microbiology / Q000635:transmission*; D005260:Female; D007938:Leukemia / Q000382:microbiology / Q000635:transmission / Q000662:veterinary*; D001909:Leukemia Virus, Bovine / Q000276:immunology / Q000302:isolation & purification; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D014412:Tumor Virus Infections / Q000662:veterinary*
chemical_list: D000914:Antibodies, Viral