[Genetic blood markers of the ABO system in patients with pulmonary tuberculosis in relation to ethnic origin].

The literature data and the results of a study of genetic blood markers of the ABO system in pulmonary tuberculosis patients and in 1947 donors (control group) are given in relation to the ethnic appurtenance. There is a relation between the incidence of a blood group to the ethnic appurtenance and nationality of the subjects examined. For example, in Asian subjects (Kazakhs) the B(III) blood group is much more common, while the O(I) and A(III) blood groups are in the Europeans. The nature of the specific process depended, to a certain degree, on the blood group. The minor forms of tuberculosis and a more benign course were typical of 0(I) and A(II) groups, while in B(III) groups the process course was unfavourable with a tendency to destruction which is responsible for the formation of additional high risk groups of tuberculosis contamination.