Abstract
A bullock which did not have bovine leukemia virus (BLV) antibody was inoculated with lymphocytes from BLV-infected cows. The lymphocyte count in the peripheral blood attained a peak of 52, 000 cells per μl of blood at 2 months after inoculation. Thereafter it decreased to 20, 000 cells per μl of blood. The bullock showed the persistent lymphocytosis and died of emaciation with posterior paresis at 44 months after inoculation. Histopathologically lymphosarcomatous lesions were present in the abomasum, heart and epidural fatty tissue of the spinal cord.
