[The results of a 15-year study of the persistence of Yersinia pestis L-forms].

New diagnostic preparations for the detection of L-forms, immunoglobulin erythrocyte diagnosticum and luminescent antimembrane immunoglobulins, are described. Proofs indicating that Y.pestis L-forms are constantly isolated from wild rodents and their ectoparasites in the natural foci of plague are given.

[A gas chromatographic analysis of the fatty acid composition of Yersinia pestis].

The fatty acid composition of Y. pestis strains, the causative agent of plaque, has been studied. Y.

[The immunodiagnosis of melioidosis by a solid-phase variant of radioimmunological analysis (RIA)].

A variant of the solid-phase radioimmunoassay (RIA) has been developed for the detection of specific immunoglobulins in laboratory animals infected with Pseudomonas pseudomallei. The proposed method has advantages over the indirect hemagglutination test and the enzyme immunoassay in its sensitivity and specificity. The newly developed RIA variant, based on group-specific antigens 6 + d, makes it possible to classify the strain causing the disease with the Asian or Australian serovar of P.

[The fatty acid composition of the cellular structures of Yersinia pestis].

Fatty acid composition of lipopolysaccharides (LPS) and cytoplasmic membranes (CPM) of Yersinia pestis [correction of the plaque microbe] has been studied. Concentration of certain acids in the LPS content proved sharply different and thus the strains were separated into groups. High content of 3-oxymiristinic acid was a distinction of vaccine strains.