نتایج جستجو برای: clinical isolates
تعداد نتایج: 1225545 فیلتر نتایج به سال:
background: macrolides, lincosamides and type b streptogramins (mlsb) are commonly used for the treatment of staphylococcal infections. inducible mlsb resistance (imlsb) cannot be identified by standard methods of antibiotic susceptibility testing. d-test appears to be a reliable indicator of imlsb strains. the aim of this study was to determine the prevalence of clindamycin resistance phenotyp...
Introduction: Methicillin-resistant Staphylococcus aureus (MRSA) can cause serious and life-threatening hospital- and community-acquired infections. Colonized and infected patients represent the most important reservoir of MRSA in health care facilities. Therefore, in this study, MRSA isolates collected from Shohada Hospital in Tabriz were evaluated for the frequency of mecA gene and their anti...
Background and purpose: Acinetobacter Baumannii is an opportunistic bacterium, which is considered as a concern in hospitals throughout the world due to high antibiotic resistance rate. The aim of this study was to investigate the prevalence of carbapenem resistance genes in clinical isolates of this bacterium. Materials and methods: In this study, 100 clinical isolates of Acinetobacter Bauman...
Background: Antibiotics called macrolide, lincosamide and streptogramin B (MLSB) are being used to treat staphylococci infections. Multiple pathways that impart resistance to MLSB antibiotics have been confirmed to cause clinical failure. The present work aimed to determine the frequency of constitutive and inducible clindamycin resistant among coagulase-negative staphylococci (CoNS) isolates o...
BackgroundandObjectives:RapidandaccuratedetectionofmethicillinresistantStaphylococcus aureus (MRSA) is an important role of clinical microbiology laboratories to avoid treatment failure. The aim of this study was to compare conventional methods against the E-test minimum inhibitory concentration (MIC) method to determine the best phenotypic method. Materials a...
Background and Objective: Acinetobacter baumannii is considered to be a re-emerging causative agent of nosocomial infections. There is a significant relation between pathogenicity of this bacterium and the numerous virulence factors. The purpose of this study was to investigate nine virulence factor genes in A. baumannii isolates derived from hospitalized patients. Materials and Methods: A tot...
background: cefepime was used as empirical treatment in ventilator-associated pneumonia (vap) induced by gram-negative and gram-positive bacteria. this study aimed to determine the antimicrobial susceptibility pattern of cefepime against microorganism causing vap in mazandaran, north of iran. methods: this study was performed on vap patients diagnosed with clinical pulmonary infection score (cp...
Background and objective: Extended Spectrum Beta lactamases (ESBL) such as TEM (Temoneria) is one of the bases of antibiotic resistance in Escherichia coli isolates. The aim of this study was evaluation of TEM Extended Spectrum Beta lactamase producing E. coli, in clinical samples isolated from Zanjan hospitals, by phenotypic and PCR methods. Materials and Methods: In this cross-sectional study...
Brucellosis is a widespread zoonotic disease causing considerable economic and public health problems. Despite animal vaccination, brucellosis remains endemic in some areas such as Iran, especially in the western Iranian province of Hamadan. We sought to detect some of the most common virulence-associated genes in Brucella isolated from human blood cultures to determine the prevalence of some v...
Background and purpose: Acinetobacter has emerged as a significant opportunistic pathogen responsible for nosocomial infections. Treatment of infections due to this organism is becoming a serious clinical concern and this bacterium is frequently resistant to multiple classes of antibiotics such as family of β-lactam drugs. β-lactamases enzyme represent the main mechanism of bacterial resista...
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