نتایج جستجو برای: ژن bla ctx
تعداد نتایج: 22174 فیلتر نتایج به سال:
OBJECTIVES Previously 14 conjugative plasmids from multi-drug resistant (MDR) Escherichia coli from healthy humans and food-producing animals in Switzerland were sequenced. The aim of this study was to extend the genetic characterization of these plasmids with a focus on bla ESBL genes including bla CTX-M-1 and bla TEM, class 1 integrons and toxin-antitoxin (TA) systems contained therein. MET...
The emergence of carbapenem-resistant Klebsiella pneumoniae (CRKP) often responsible for numerous hospital-associated outbreaks has become an important public health problem. From January 2013 to February 2014, a total of 41 non-duplicate K. pneumoniae isolates with carbapenem resistance, were collected at a tertiary teaching hospital in Nanchang, central China. Among 41 K. pneumoniae isolates,...
Over a 4-month period from November 2002 to February 2003, 27 ceftazidime-resistant or cefotaxime-resistant nonrepetitive Enterobacter cloacae isolates were collected from 27 patients hospitalized at HuaShan Hospital, Shanghai, People's Republic of China. The Etest did not detect extended-spectrum beta-lactamases (ESBLs) in those 27 isolates; however, screening by the NCCLS ESBL disk test and c...
INTRODUCTION: Infections caused by β-lactamase-producing gram-negative bacteria, such as Klebsiella pneumoniae, are increasing globally with high morbidity and mortality. The aim of the current study was to determine antimicrobial susceptibility patterns and the prevalence of antibiotic resistance genes (β-lactamase and integron genes) using multiplex PCR. METHODS One-hundred K. pneumoniae is...
Epidemiologic surveillance study was conducted in southern Japan to determine the antimicrobial resistance phenotypes and characterize the β-lactamase genes and the plasmids harboring these genes in Salmonella enterica serovar Infantis (S. Infantis) isolates from broilers. Between January, 2007 and December, 2008, a total of 1,472 fecal samples were collected and examined at the Laboratory of V...
INTRODUCTION Expended spectrum β-lactamase (ESBL)-producing Enterobacter cloacae is an important nosocomial pathogen. In this study, the prevalence and the molecular epidemiology of ESBL producing E. cloacae strains isolated from various hospitals in Annaba, Algeria were investigated. METHODOLOGY The study involved 63 isolates of E. cloacae obtained during 2009 at the four hospitals in Annaba...
Shigella flexneri serotype 2 variant (II:3,4,7,8) was isolated in 2008 and first reported in China in 2013. In the present study, epidemiological surveillance from 2003 to 2013 in China suggested that this serotype first appeared in Guangxi in 2003; it then emerged in Shanghai and Xinjiang in 2004 and in Henan in 2008. Of the 1813 S. flexneri isolates, 58 S. flexneri serotype 2 variant strains ...
زمینه و هدف: مقاومت آنزیمی بتالاکتاماز طیف گسترده(esbl) یکی از شایع ترین مکانیسم های مقاومت آنزیمی بتالاکتاماز در باکتری های عامل عفونت های بیمارستانی است. از مهم ترین عوامل این نوع مقاومت دارویی، مصرف خودسرانه و یا بیش از حد آنتی بیوتیک ها می باشد. الگوی مقاومت سویه های باکتریایی مولد عفونت های بیمارستانی با مکانیسم esbls در مناطق مختلف ایران در دسترس نمی باشد و شیوع آن در فصل های سال متفاوت ب...
Four nontyphoidal Salmonella strains with resistance to extended-spectrum cephalosporins and nonclassical quinolone resistance phenotype were studied. Two S. Give were isolated from pediatric patients with acute gastroenteritis, and two S. Heidelberg were recovered from raw chicken meat. Phenotypic characterization included antimicrobial susceptibility testing and detection of extended-spectrum...
BACKGROUND The class A carbapenemase KPC has disseminated rapidly worldwide, challenging the treatment of Gram-negative infections. This report describes the first KPC-producing Klebsiella pneumoniae isolates identified in Norway (n=6) and the second isolate from Sweden. METHODS Antimicrobial susceptibility profiles were determined using Etest. PCR and sequencing were used to determine the bl...
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