Distribution of ciprofloxacin-resistance genes among ST131 and non-ST131 clones of isolates with ESBL phenotypes isolated from women with urinary tract infection.

Background And Objectives: sequence type 131 (ST131) is associated with extended-spectrum beta-lactamase (ESBL) production and fluoroquinolone resistance. This study aimed to investigate the prevalence of ST131, ESBL, and plasmid-mediated quinolone resistance (PMQR) genes in the ciprofloxacin-resistant (CIP) and ESBL producers from women with UTI.

Materials And Methods: The CIP-resistant ESBL producing (CIP/ESBL) isolates were screened for ST131-by specific PCR of and .

Distribution of Pathogenicity Island Markers and H-Antigen Types of O25b/ST131 Isolates from Patients with Urinary Tract Infection in Iran.

serogroup O25b-sequence type 131 ( O25b/ST131) is known as a multidrug-resistant organism with high virulence potential and has received attention internationally. We aim to investigate the prevalence of O25b/ST131 and the distribution of , pathogenicity island (PAI) markers, phylogenetic groups, and H-antigen typing in the O25b/ST131 isolated from patients with urinary tract infection (UTI) in Tehran, the capital of Iran. Seventy (26.

Clonal relatedness and biofilm formation of OXA-23-producing carbapenem resistant Acinetobacter baumannii isolates from hospital environment.

Carbapenem-resistant Acinetobacter baumannii (CRAB) is a serious threat for hospitalized patients and it can survive for long periods in hospital settings, particularly on inanimate surfaces. The environment occupied by these resistant and resilient isolates may act as a reservoir for cross-colonization and outbreaks. Here, we aimed to determine the distribution of CRAB in the hospital environment and to characterize their clonal relatedness, susceptibility profile, carriage of bla genes, and biofilm formation.