Immunological aspects of leukemia and tuberculosis of cattle

The results of studies of cow blood serum samples for the detection of anti-mycobacterial and anti-leukemic antibodies the article described. Samples were obtained from tuberculin-responsive and non-tuberculin-resistant animals, as well as animals infected and uninfected with BLV. The data proving that in more than 30 % of samples obtained from animals reacting to PPD anti-leukemia antibodies are found in ELISA and anti-mycobacterial antibodies in more than 40 % of RID positive samples.