non-human animal disease Enzootic Bovine Leukosis Sirarat Sarntivijai A lymphoid neoplastic disease in cattle caused by the bovine leukemia virus. Enzootic bovine leukosis may take the form of lymphosarcoma, malignant lymphoma, or leukemia but the presence of malignant cells in the blood is not a consistent finding. SNOMEDCT:38857005 MESH:D016583