Acinetobacter baumannii (A. baumannii) has been known as a causative pathogen of hospital acquired infections. The aim of this study is to examine the presence of A. baumannii among clinical isolates from intensive care unit (ICU) in Mansoura University Hospital (MUH), its antibiotic resistance pattern, and prevalence of antibiotic resistance genes metallo-β-lactamases (MBLs) and extended-spect...

The aims of this study were to investigate drug resistance rates, types of extended spectrum beta lactamases (ESBLs), and molecular epidemiological characteristics of 43 Shigella sonnei isolates. Ampicillin-sulbactam, amoxicillin-clavulanate, chloramphenicol, and ciprofloxacin were the most active antibiotics. Five isolates harbored bla SHV-12, bla(TEM-1) and bla(CTX-M-15). More than 90% of the...

1. Paterson DL, Bonomo RA. Extendedspectrum beta-lactamases: a clinical update. Clin Microbiol Rev. 2005;18: 657–86. 2. Livermore DM, Canton R, Gniadkowski M, Nordmann P, Rossolini GM, Arlet G, et al. CTX-M: changing the face of ESBLs in Europe. J Antimicrob Chemother. 2007; [Epub 2006 Dec 6]. 3. Pitout JD, Gregson DB, Church DL, Elsayed S, Laupland KB. Community-wide outbreaks of clonally rela...

Urinary tract infections (UTIs) are a stern public health problem and are caused by a wide range of pathogens, but most frequently by Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Enterococcus faecalis and Staphylococcus saprophyticus. High frequency rates and increasing antimicrobial resistance among uropathogens threaten to greatly raise the economic load of these infections. Fe...

Since around 2000 - earlier in Poland and Spain and later in France and the UK - dramatic shifts have occurred in the prevalence and types of extended-spectrum beta-lactamases (ESBLs) in Europe. Before this watershed, most producers were nosocomial isolates, often Klebsiella spp. or Enterobacter spp. from specialist care units, and had mutant TEM or SHV ESBLs. Subsequently, CTX-M ESBLs have bec...

Due to annually recurring mass gatherings in Makkah, Saudi Arabia could be a hot spot for the collection of multidrug-resistant strains such as Pseudomonas aeruginosa (P. aeruginosa). The various genotypes of extended spectrum beta-lactamases (ESBLs) are SHV, TEM, CTX-M types VEB, PER, BEL-1, BES-1, ESBL enzymes in P. aeruginosa. The present study aimed to identify the prevalence these genes in...

in neonatal Escherichia coli sepsis and ampicillin resistance in the era of intrapartum antibiotic prophylaxis. Pediatrics 2008; 121: 689–96. 3. Livermore DM, Canton R, Gniadkowski M et al. CTX-M: changing the face of ESBLs in Europe. J Antimicrob Chemother 2007; 59: 165–74. 4. Bonacorsi S, Clermont O, Houdouin V et al. Molecular analysis and experimental virulence of French and North American ...

The widespread use of β-lactam antibiotics has lead to the development of resistance to this group of antibiotics in bacterial pathogens due to various types of β lactamase production. Amongst the mechanisms of resistance to third generation cephalosporins, production of extended spectrum β-lactamases (ESBLs) and AmpC β lactamases is the most common1. Since both ESBL and AmpC β-lactamase are en...

objective(s) resistance to the new generation of cephalosporins which is mediated by extended-spectrum beta-lactamases (esbls) has been found among escherichia coli isolates throughout the world. these resistance genes and their producers, the micro-organisms carrying beta-lactamases, are responsible for serious clinical and therapeutic problems among inpatients and it is necessary to pay more ...

Production of Extended spectrum β-lactamases (ESBLs) is a common mechanism of resistance in multidrug- Pseudomonas aeruginosa, but the frequency of different ESBLs may vary significantly in different parts of the world. The aim of this study was to investigate the prevalence of OXA-2/OXA-10 type ESBLs and class 1 integron among clinical isolates of P. aeruginosa in Ta...