Positive and negative influences stimulating the immune systems of the cattle infected with leukemia

Results of experiment on studying influence modern immune modulators on level nonspecific antibodies and cytologic structure of lymph nodes large horned livestock, the different age groups, infected are submitted to clause leukemia virus. Authors have established, that applications immune modulators to newborns and calves 4-6 months age promote increase of the immune status not provoking pathological changes, however cows which have been spontaneously infected at half-one-year-old age, pathological changes expressed in decrease IgM and malignant reorganization of cellular structure lymph nodes are revealed.