[The immunological diagnosis of peptostreptococcal infection]. / Immunologicheskaia diagnostika peptostreptokokkovoi infektsii.

The work deals with different methods for the diagnosis of anaerobic streptococcal infection, experimentally tested and clinically approved in the examination of children with acute pneumonia. The passive hemagglutination test, the immune rosette formation test and the specific lymphocyte blastogenesis test were used for diagnosis. As sensitin and antigen, the preparation of the peptostreptococcal bacterial mass was used. The diagnostic titer of antibodies to anaerobic streptococci was 1:160. A twofold and greater increase in the number of antigen-dependent rosette-forming lymphocytes and in specific blast transformation in the presence of the diagnostic antibody titer confirms the etiological role of anaerobic peptostreptococci in the development of pneumonia in children.