[EPIDEMIOLOGIC SITUATION BY NATURAL-FOCI INFECTIONS IN THE CRIMEA FEDERAL DISTRICT IN 2014-2015].

Aim: Analysis of epidemic manifestations of natural-foci infections (NFI), clarification of spectrum of their causative agents, determination of epizootic activity of natural foci in the Crimea Federal District (KFD).

Materials And Methods: Epizootologic examination of 10 administrative districts of KDF was carried out. 291 pools (2705 specimens) of ixodes ticks and 283 samples of organs of small mammals were studied by PCRmethod for the presence of DNA/RNA of causative agents of a number of NFI.

[PROCUREMENT OF SANITARY AND EPIDEMIOLOGICAL WELFARE IN THE REGION OF-CITY-RESORT SOCHI FOR DANGEROUS AND NATURAL-FOCI INFECTIOUS DIS- EASES IN 2015].

Aim: Analysis ofresults of epidemiologic monitoring especially dangerous, natural-foci and other infectious diseases, asill as epizootologic activity of natural foci of infection on,the terri- tory, of city-resort Sochi.

Materials And Methods: Laboratory studies of 820. samples by PCR; im- mune- and bacteriologic methods were carried out, among those 344 - clinical material, 12 - water from open bodies and 321 - field material.

[Preparation of magnetic latexes and their use for the immunodetection of microbial antigens].

The possibility of detecting antigens of plague, tularemia, and brucellosis microbes with magnetic latex (ML)-based test systems has been demonstrated. MLs were prepared from latexes (polyacroleine microspheres, 1.2-1.

[Detection of plague microbe in the fleas by polymerase chain reaction by using magnetic immunosorbents].

The polymerase chain reaction (PCR) with and without pre-treatment of the samples of the fleas Citellophilus tesquorum with magnoimmunosorbents was used to detect the plague microbe in the samples containing 142, 168, 193 or more bacterial cells. PCR analysis reduced the time of tests of ectoparasites for plague to 6 hours. The use of a combination of PCR and magnoimmunosorbent simplified the most time-consuming and longest stage of isolation of plague microbial DNA from the suspensions of the fleas, which allows the time of a test to be reduced to 3 hours.

[Diagnostic suspension for detection of the infective agent of tularemia].

The matrix for obtaining silica-based diagnosticum was selected, its activation with surfactant was optimized and its immobilization with tularemia immunoglobulins was carried out. In the glass suspension agglutination test (SAT) the sensitivity of the diagnosticum was 3.125 x 10(6) to 6.

[Improvement of the method for the indication of the causative agent of anthrax].

A combined method for the indication of the causative agent of anthrax (Bacillus anthracis), including the preparation of the material to be tested, the exposure of the magneto-imunosorbent in the sample, cultivation in selective medium, DNA extraction with subsequent testing in the polymerase chain reaction with primers to genes cap, pag and chromosomal sequence Ba813, the registration and interpretation of results, has been developed. All determinations, including the preparation of samples, last not more than 6 hours. The indication of B.

[Improvement of methods for indication of the causative agents of natural focal infections under conditions of emergency situations with epidemiologic consequences].

The improvement of the laboratory diagnostics of quarantine infections (QI) is aimed at obtaining the result at a shorter time, the simplification of making serological reactions, enhancing the specificity and sensitivity of the results due to the introduction of new = generation diagnostic preparations into practical use. The wide practical use of erythrocytic and immunofluorescent diagnostic preparations has shown that they cannot completely meet all requirements simultaneously. The optimized scheme of the indication of the causative agents of QI must ensure the combined use, at different stages of the analysis, of magneto-immunosorbents, enzyme immunoassay, as well as immuno-suspension preparations for the simplification and acceleration of obtaining results with sufficient sensitivity and specificity provided.

[New preparations for the rapid diagnostics of dangerous infectious diseases and their use in emergency situations].

The use of new diagnostic preparations (magnetic immunosorbents, polyvalent fluorescent immunoglobulins and immunoperoxidase conjugates), as well as the combination of magnetic immunosorbents with the polymerase chain reaction, for the rapid diagnostics of dangerous infectious diseases has been shown to have good prospects. Information on their successful use for laboratory diagnostics in emergency situations is presented.