A highly potent strain of Lentinus edodes producing lentinomycin B, an erythadenin metabolite showing hypolipidemic activity, and biologically active water soluble endopolysaccharides was isolated. The optimum composition of the medium for the strain submerged cultivation was developed. The medium provided shorter period of the strain cultivation and a 2-fold increase of the biomass yield and production of the endopolysaccharides up to 21 g/l and 4.8 g/l of the culture fluid respectively. The total fraction of the water soluble polysaccharides isolated from the mycelium contained glucose, galactose, mannose, arabinose and xylose as the neutral monosaccharides. Glucose was the main monosaccharide. The procedure of the strain submerged cultivation provided production of several final substances during a single technological cycle.

The efficacy of cycloferon use in the treatment of frequently ill children (FIC) was estimated by the dynamics of the blood plasma proteomic profile. A group of FIC at the age of 4 to 10 years were observed. Cycloferon was administered according to the standard schemes. The results were analysed by the computer programme complex, including the anamnesis, clinical symptoms, infection index, findings of the electrophoretic and mass-spectrometric analyses of the blood plasma before and after the drug use. The intensity indices of the Rho and Ras proteins, the signal pathways, in the blood proteomic profile proved to be sensitive and specific parameters for estimating the regimens of the therapy and prophylaxis of respiratory tract infection in FIC. The epidemiologic efficacy of cycloferon, as an agent of nonspecific immunoprophylaxis for FIC during seasonal prevalence of respiratory tract infection and influenza cases was shown.

Characteristics of the clinical process of acute intestinal infection were studied. The main infection was salmonellosis. The intoxication syndrome was defined and its dynamics was estimated by the intoxication leukocytic index. The severity and intoxication syndrome level were characterized by the integral value or the level of the mean mass molecules. The infusion validity as pathogenetic treatment providing detoxication and normal hemostasis was shown. The favourable outcomes were observed to depend on the dynamics of the main clinical symptoms and the intoxication leukocytic index.

The use of systemic enzyme therapy in combination with antibiotics in the treatment of urogenital chlamydia infection in patients of both sexes proved to improve the therapeutic efficacy and to reduce the risk of the side effects.

Clinical trial of Zoflox, an antimicrobial drug, was performed in complex therapy of elderly outpatients with acute pneumonia complicating acute respiratory viral infection. Among the outpatients there were elderly subjects with hepatic insufficiency. The drug showed to be efficient and safety when used in a middle therapeutic dose of 400 mg twice a day daily for 10-14 days.

Methicillin resistant Staphylococcus aureus (MRSA) is the main pathogen of hospital- and community-associated infections. Methicillin resistance is due to mecA gene located in a mobile complex element, staphylococcal cassette chromosome mec (SCCmec). The structure of the staphylococcal cassettes is diverse. At present eleven types of the cassettes are described. Types I-IV SCCmec are always associated with epidemiologically significant genetic lines of Staphylococcus. Thus, the pandemic hospital-associated MRSA (HA MRSA) belonging to CC5 and CC8 are of the types I-III SCCmec. The prevalence of virulent community-associated MRSA (CA MRSA) in many regions of the world is first of all connected with the characteristics of the type IV SCCmec structure and the presence of a recently described arginine catabolic mobile element (ACME) increasing the colonization activity of Staphylococcus. The review presents the up-to-date data on the origin, genetic structure and classification of SCCmec. Global genetic lines of MRSA are described and the problem of CA MRSA is discussed.