Study of Virulence Factors in Urease-Positive Bacteria Isolated from Urinary Tract Infections Clinical Specimens
2018
Ali S. Dheyab | Omar I. Aljumaili | Najeeb M. Hussein
The study included investigation virulence factors that product from urease positivebacteria species isolated from urinary tract infection. a total of 60 clinical specimens, takenfrom urine sample had been cultured and identified pure isolates result show like Klebsiella.pneumonia (n = 5, 8.3%), Staphylococcus.sp (n = 3, 5%) and Pseudomonas.aeruginosa (n= 1, 1.6%). Most isolated of urease positive bacteria were negative gram stains exceptedStaphylococcus sp. was positive gram stain. All isolates gave positive result of catalase test,while coagulase, oxidase, indole, Simmon citrate and kligler test was performed for all isolatedgave variable result. Also all urease positive bacteria were identified by using VITEK-2 system.Klebsiella.pneumonia, Staphylococcus.aureus and Pseudomonas.aeruginosa non fermentationfor lactose sugar test while Staphylococcus.Saprophyticus had ability lactose fermentation.Antibiotic susceptibility for all urease positive bacteria results showed that all highly sensitivetowards (Amikacin, Gentamycin, Imipenem, Norfloxacin, Ciprofloxacin and Vancomycin) whileshowed low sensitivity towards (Ceftriaxone, Cefotaxime, Nalidixic acid and Nitrofurantoin). Inaddition all bacteria produce urease showed had Clear difference in another virulence factorslike (DNase, Lipase, Protease).
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