Spread of blaCTX-M-type and blaPER-2 b-lactamase genes in clinical isolates from Bolivian hospitals
نویسندگان
چکیده
Methods: A total of 642 clinical isolates were collected consecutively during a 4 month period (September to December 2004). Resistance or reduced susceptibility to cefotaxime and/or ceftazidime and/or aztreonam was assessed using double disc synergy tests using clavulanic acid, cefotaxime, ceftazidime and aztreonam to identify putative ESBL-producing isolates. The ESBL determinants were characterized by colony blot hybridization, PCR and DNA sequencing.
منابع مشابه
Genetic properties of blaCTX-M and blaPER β-lactamase genes in clinical isolates of Enterobacteriaceae by polymerase chain reaction
Objective(s):blaCTX-Mand blaPER are two genes that encode class A extended-spectrum β-lactamases (ESBLs) and can be responsible for therapeutic problems. This study was carried out to evaluate the molecular properties of these genes in clinical isolates of Enterobacteriaceae by polymerase chain reaction (PCR), restriction digestion and sequencing. Materials and Methods: During six months, start...
متن کاملDetermination of Antibiotic Resistance Pattern and frequency of CTX-M, TEM, and SHV Β-Lactamase Encoding Genes among Shigella Isolates from Inpatients in Tehran, Iran
ABSTRACT Background and Objectives: The emergence of extended-spectrum β-lactamase (ESBL)-producing Shigella spp. is becoming a health concern worldwide. This study aimed to investigate antibiotic resistance pattern and frequency of blaCTX-M, blaSHV, and blaTEM genes among Shigella isolates from patients in hospitals of Tehran, Iran. Methods: In this cross-sectional ...
متن کاملبررسی فراوانی ژن های blaPER، blaVEB، blaCTX-M، tetA و tetB در ایزوله های بالینی اسینتوباکتر بومانی جدا شده از بیماران بستری در بیمارستانهای تهران در سال 1396
Background & Aim: Infections and outbreaks caused by multidrug-resistant Acinetobacter baumannii are prevalent and have been reported worldwide over the past twenty or more years. Beta-lactamase genes including blaPER, blaVEB and blaCTX-M confer resistance to beta-lactam antibiotics and tetA and tetB are responsible for resistance to tetracycline in such bacteria. Methods: A total of 65 isolat...
متن کاملPER, CTX-M, TEM and SHV Beta-lactamases in Clinical Isolates of Klebsiella pneumoniae Isolated from Tehran, Iran
Objective(s) Different types of extended spectrum beta-lactamases (ESBLs) are encountered in the clinical settings worldwide. There are a few studies regarding the prevalence of ESBL genes among Klebsiella pneumoniae isolates at Tehran especially those of blaPER and blaCTX. The aim of this study was to determine the prevalence of blaSHV, blaTEM ,blaPER and blaCTX genes among clinical K. pneumo...
متن کاملAntibiotic Susceptibility and Multi-drug Resistance of Escherichia coli Isolates Producing CTX-M and TEM Type Beta-lactamases in Mashhad, Iran, in 2010
Background & Aims: One of the most common causes of bacterial resistance to beta-lactam antibiotics is beta-lactamase producing. The aim of this study was to compare the antibiotic resistance of urinary Escherichia coli (E. coli) isolates producing CTX-M and TEM type beta-lactamases, and to determine the strains with co-resistance to multiple antibiotics in Mashhad, Iran. Methods: E. coli b...
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