[Antigen-inducing activity of blood preparations from leukemia patients].

The evidence of appearance of specific surface antigen in the blood leukocytes of monkeys inoculated with cell-containing or cell-free materials from patients with leukemia (different variants of acute leukemia, chronic myelo- and lympholeukemia) with various clinicohematological characteristics is presented. The results of comparisons of the electron microscope and immunofluorescent examinations of experimental and control monkeys showed that the majority of the experimental animals with positive immunofluorescent tests were shown by the electron microscope examinations to have virus particles type C.