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  • Polish Journal Of Microbiology

 

Original Paper

Molecular Characterization of Shiga Toxin-Producing Escherichia coli Strains Isolated in Poland

, stx2g. Among STEC O157 strains we observed conserved core set of 14 virulence factors, stable in bacteria genome at long intervals of time. There was one cattle STEC isolate which possessed verotoxin gene as well as sta1 gene encoded heat-stable enterotoxin STIa characteristic for enterotoxigenic E. coli. To the best of our knowledge, this is the first comprehensive analysis of virulence gene profiles identified in STEC strains isolated from human, cattle and food in Poland. The results obtained

Aleksandra Januszkiewicz, Waldemar Rastawicki

Polish Journal of Microbiology , ISSUE 3, 261–269

Original Paper

The Determination and Correlation of Various Virulence Genes, ESBL, Serum Bactericidal Effect and Biofilm Formation of Clinical Isolated Classical Klebsiella pneumoniae and Hypervirulent Klebsiella pneumoniae from Respiratory Tract Infected Patients

96 K. pneumoniae strains were isolated from sputum of respiratory tract infected patients. The isolates were performed string test, AST, ESBL virulence gene, serum bactericidal and biofilm assays. Out of 96 isolates, 39 isolates (40.6%) were identified with hypervirulent phenotypes. The number of cKP exhibiting resist­ance to the tested antimicrobials and ESBLs were significantly higher than that of the hvKP strains. The virulence genes of K. pneumoniae such as K1, K2, rmpA, uge, kfu and

Rambha K. Shah, Zhao H. Ni, Xiao Y. Sun, Guo Q. Wang, Fan Li

Polish Journal of Microbiology , ISSUE 4, 501–508

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