[Problems and prospects of gene therapeutics and DNA vaccines development and application].

The review is summarized foreign publications devoted to different aspects of DNA vaccines and gene therapeutics' biological safety. In spite of incomprehension in their action, numerous prototype DNA-based biopharmaceuticals are in advanced stages of human clinical trials. This review is focused on some safety concerns of gene formulations vaccines relate to toxic effects, vertical transmission possibility, genome integration complications, immunologic and immunopathologic effects and environmental spread.

[Identification of clinical isolates of Burkholderia cepacia and assessment of their pathogenicity in animal experiments].

In experiments on animals study of pathogenicity of 9 clinical strains of Burkholderia cepacia isolated from patients with chronic lung diseases was performed. Preliminary identification of studied strains by means of biochemical and genetic methods allowed to establish their belonging to B. cepacia species.

[The role of the Yersinia plasmid of calcium-dependency in the formation of the plague immunity].

It was shown that viable variants of the Y. enterocolitica microorganisms containing the plasmid of Ca-dependency (native one or from EV/ I Y. pestis cells) were more immunogenic to plague-infected guinea pigs than isogenic non-plasmid variant.

[The antibody spectrum after the inoculation of sensitive animals with Yersinia pestis and Yersinia pseudotuberculosis bacteria].

Antibody spectra in the sera of guinea pigs and white mice infected with Y. pestis and Y. pseudotuberculosis, the causative agents of plague and pseudotuberculosis, were determined with the use of immunoblotting.