This study does not display that BLV causes cancer as it is not really known whether the infections occurred before or following the breast malignancy. Furthermore, we have no idea from where the virus came. An infection could have happened through the consumption of unpasteurized milk or undercooked meats, or it could have already been transmitted by other humans. If it proves to attended directly from bovine products, steps should be taken within the cattle sector to prevent the spread of BLV to humans.. Cattle virus found in human cancer cells By Kate Bass, BSc Evidence of contact with bovine leukaemia virus has been found in human breast malignancy samples.Clue to the blues that include the flu Vanderbilt study may lead to new remedies for mood disordersVanderbilt University researchers might have discovered a clue to the blues that can include the flu – depression may be triggered by the same mechanisms that enable the disease fighting capability to react to infection. In a report in the December problem of Neuropsychopharmacology, Chong-Bin Zhu, M.D., Ph.D., Randy Blakely, Ph.D., William Hewlett, M.D., Ph.D., and colleagues activated the disease fighting capability in mice to create despair-like behavior which has similarities to major depression in humans. Many people exhibit signs of lethargy and depressed disposition during flu-like illnesses, stated Blakely, director of the Vanderbilt Middle for Molecular Neuroscience.