Bovine Leukemia, also known as Bovine Leukemia Virus (BLV) infection, is a viral disease that affects cattle. It is caused by a retrovirus that can lead to the development of lymphosarcoma, a type of cancer in the lymphatic system. Infected animals may not show symptoms for years, but they can spread the virus through blood, milk, and other bodily fluids. The disease is primarily found in dairy and beef cattle, and it can result in economic losses for farmers due to decreased milk production and increased veterinary costs. Regular testing and management practices are essential to control the spread of Bovine Leukemia within herds.