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[Human acute lymphoblastic leukemia associated with HTLV-I virus and its infection in healthy populations from various regions of the USSR].

Patients with various forms of hemoblastoses (328) and clinically healthy persons (530) were examined for antibodies to HTLV-I. The presence of antibodies was detected in 3 out of 40 patients with acute lymphoblastic leukemia and only in 1 of 70 patients with lymphosarcoma. These data indicate that sporadic cases of T-cell leukemia associated with HTLV-I were detected in the USSR. Out of 530 healthy persons only 4 contained antibodies to HTLV-I antigens.