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Bovine leukaemia virus is a [[:Category:Retroviridae|'''retrovirus''']] causing two specific diseases: '''Bovine lymphosarcoma''' and '''Persistent lymphocytosis'''.
Bovine leukaemia virus is a [[:Category:Retroviridae|'''retrovirus''']] causing two specific diseases: '''Bovine lymphosarcoma''' and '''Persistent lymphocytosis'''.
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Bovine lymphosarcoma is fatal while persistent lymphocytosis is not usually so. However, those affected with lymphosarcoma may or may not have been through the persistent lymphocytosis stage.
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Bovine lymphosarcoma is fatal while persistent lymphocytosis is not usually so. However, those affected with lymphosarcoma may or may not have been through the persistent lymphocytosis stage <ref>Radostitis et al (2007). Veterinary Medicine 10th Edition, Sauders Elsevier, Chapter 21</ref>.
Bovine leukosis is not transmissible to humans.
Bovine leukosis is not transmissible to humans.