EVALUATION OF NUTRIENT MEDIA TO GROW SOME INFECTION DISEASES CAUSATIVE AGENTS.

The detection methods for microbial agents that have eidemiological significance are diversity but cultivation on nutritional media remains the gold standard in microbiological diagnostics. Choice of medium depends on the conditions in which bacteria were early and is present. The nature life determines its physiological peculiarity then a metabolic plasticity promote to survive and to save the virulence.

[STUDY OF COMPOSITION OF PLANT EXTRACTS, POSSESSING ANTIMICROBIAL EFFECT AGAINST VIBRIO CHOLERAE EL TOR, USING HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY].

Aim: Study the composition of plant extracts using high-performance liquid chromatography. (HPLC) and evaluation of their antimicrobial effect against Vibrio cholerae El Tor.

Materials And Methods: Qualitative and quantitative composition of plant extracts was studied using HPLC.

Ultrastructural Changes in the Intestine of Suckling Rabbits Infected with Cholerogenic and Non-Cholerogenic nonO1/nonO139 Vibrio cholerae Strains.

We performed an electron microscopic study of the small intestine of suckling rabbits infected with cholerogenic and non-cholerogenic strains nonO1/nonO139 Vibrio cholerae. Cholerogenic strain induced mostly hydropic degeneration of the epithelium typical of cholera toxin effect, while non-cholerogenic strain induced the formation of lacunae along the borders of adjacent epithelial cells typical of hemagglutinin/protease effect. In both cases, reduction of microvilli, destruction of intracellular organelles, two types of mitochondrial reaction (condensation and swelling with destruction of cristae), appearance of myelin figures, defects in the capillary walls, and activation of pinocytosis were observed.

[O3:K6 serogroup vibrio parahaemolyticus - the causative agent of food toxic infection outbreaks in Primorsky region of Russian federation].

Aim: Comparative evaluation of biological properties of parahemolytic vibrios that had determined outbreaks and sporadic cases of food toxic infection in Primorsky Region in 2012 and previous years. Materials AND METHODS: 40 clinical strains of Vibrio parahaemolyticus isolated in 2012 were studied in comparison with 62 strains from this region that had been characterized by us previously. Virulence was evaluated by a complex method: hemolytic activitywas determined in Kanagawa test (KT), urease - in Kristensen medium.