title: Prevalence and spread of pseudomonas aeruginosa and Klebsiella pneumoniae strains in patients with hematological malignancies.
abstract: The aim of the study was to determine the prevalence of Pseudomonas aeruginosa and Klebsiella pneumoniae strains in patients with acute leukemias, to assess their clinical significance, and to define the sources and ways of their spread using genetic analysis. Thirty-four patients were investigated during the observed period. Twenty-one strains of Pseudomonas aeruginosa and 35 strains of Klebsiella pneumoniae were isolated from patient samples. In the case of Pseudomonas aeruginosa, 47.6% of strains were identified as pathogens and caused infection. By contrast, only 4 isolates (11.4%) of Klebsiella pneumoniae could be regarded as etiological agents of bacterial infection. Based on the obtained results, Klebsiella pneumoniae strains are assumed to be of mostly endogenous origin. In the case of Pseudomonas aeruginosa strains, the proportion of identical strains detected in various patients was higher and exogenous sources were more significant. In addition, our results confirmed the ability of Pseudomonas aeruginosa strains to survive on a particular site in the hospital for a longer time.
authors.affiliation: Department of Microbiology, Faculty of Medicine and Dentistry, Palacký University in Olomouc, Czech Republic. kolar@fnol.cz
authors.forename: Milan
authors.initials: M
authors.lastname: Kolar
authors.forename: Pavel
authors.initials: P
authors.lastname: Sauer
authors.forename: Edgar
authors.initials: E
authors.lastname: Faber
authors.forename: Jarmila
authors.initials: J
authors.lastname: Kohoutova
authors.forename: Tatana
authors.initials: T
authors.lastname: Stosová
authors.forename: Michaela
authors.initials: M
authors.lastname: Sedlackova
authors.forename: Magdalena
authors.initials: M
authors.lastname: Chroma
authors.forename: Dagmar
authors.initials: D
authors.lastname: Koukalova
authors.forename: Karel
authors.initials: K
authors.lastname: Indrak
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology; D019337:Hematologic Neoplasms / Q000150:complications*; D006801:Humans; D007710:Klebsiella Infections / Q000453:epidemiology / Q000382:microbiology / Q000635:transmission; D007711:Klebsiella pneumoniae / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D008826:Microbial Sensitivity Tests; D015995:Prevalence; D011552:Pseudomonas Infections / Q000453:epidemiology / Q000382:microbiology / Q000635:transmission; D011550:Pseudomonas aeruginosa / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*
chemical_list: D000900:Anti-Bacterial Agents