Evaluation of mechanisms of colistin resistance in strains isolated from patients with urinary tract infection in ICU.

Background And Objectives: One of the major causes of urinary tract infections is Currently, few studies investigated the mechanisms of resistance to colistin in Iran. The current study aimed to determine the prevalence of plasmid and chromosome-mediated resistance to colistin in isolates.

Materials And Methods: 177 urine samples were collected from patients with urinary tract infections hospitalized in the intensive care unit (ICU) of hospitals in the city of Qazvin.

First detection of mobilized colistin resistance gene in isolated from livestock and sewage in Iran.

Currently, few studies have investigated the mechanisms of resistance to colistin in Iran. The aim of this study was to investigate -harbouring dissemination in livestock and sewage in Iran. A total of 115 samples from cows ( = 38), chickens ( = 47) and urban sewage samples ( = 30) were collected.

Phenotypic Identification and Genotypic Characterization of Plasmid-Mediated AmpC β-Lactamase-Producing Escherichia coli and Klebsiella pneumoniae Isolates in Iran.

One of the mechanisms of Klebsiella pneumoniae and Escherichia coli resistance to β-lactam antibiotics is the production of β-lactamase enzymes. Among these are the AmpC β-lactamases, which confer resistance to a class of antibiotics. However, little is known about the AmpC β-lactamases of K.