It is recognized the leading role of H. Pylori in the aetiology and pathogenesis of diseases of the gastrointestinal tract, it is established morphological features of changes in the mucosa at mono-infection. However, lesions of the stomach may have mixed infectious character, changing the course of the main disease. The aim of the research is to investigate the statement of the mucous membrane in its contamination with H. Pylori, Fungi of the species Candida, cryptosporidium in patients with irritable bowel syndrome. Biopsies of the mucous membrane of different stomach parts were studied, using conventional methods of dyeing with further evaluation of the results. Pathological changes in the stomach mucosa were depended on the localization of the process, the measure of contamination, and the presence of various life forms of pyloric Helicobacter whereas cryptosporidium and fungi of the species Candida (non-invasive form) did not influence essentially.

Antibiotic resistance and resistome of intestinal strains of Kl. pneumoniae colonizing healthy babies in maternity hospitals were studied. According to the results of phenotype studies, Kl. pneumoniae in 92,3% of cases were ESBL producers and showed resistance to ampicillin, amoxiclav, co-trimoxazole, less to ciprofloxacin and nitrofurantoin. 90% of intestinal Kl. pneumoniae had multiple resistance to antimicrobial drugs. According to a genome-wide study, beta-lactamase genes were found in all strains. blaOXA-1 was found in 60%, blaTEM-30 in 70%, blaCTX-M-15 in 70%, blaSHV in 100% of the strains. Genes for resistance to aminoglycosides were found in 90%, fluoroquinolones — in 40%, sulfonamides — in 80%, chloramphenicol — in 70%, tetracycline — in 50%, and trimethoprim – in 70% of Kl. pneumoniae strains.

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