a lymphoid neoplastic disease in cattle caused by the bovine leukaemia virus. Enzootic bovine leukosis may take the form of lymphosarcoma, malignant lymphoma, or leukaemia but the presence of malignant cells in the blood is not a consistent finding
caused by an oncogenic RNA virus, imported by infected animals. ...
Member States making use of this derogation shall isolate the animals on importation and subject them to an agar gel immuno diffusion test for enzootic bovine leukosis according to the provisions of Annex C two months after importation and again four months later.
