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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'''.  

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.

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.