The production of extended-spectrum beta-lactamases (ESBL) is considered one of the most important resistance mechanisms that impair antimicrobial treatment of infections caused by Enterobacteriaceae. Data on culture and susceptibility tests were collected from the Clinical Analyses and Research Laboratory charts reporting on patients admitted to the University Hospital of Maringá (HUM) from Ja...

Most of the clinically important bacteria causing infections in humans are capable of exhibit‐ ing resistance to antimicrobial agents commonly used for the treatment. Therefore, upon iso‐ lation of the organism in the clinical microbiology laboratory, characterization frequently also employs tests to detect its antimicrobial susceptibility. Thus, the report produced by clinical microbiology lab...

background: this study was done to detect multidrug resistant (mdr) and extremely drug resistant (xdr) of pseudomonas aeruginosa among strains isolated from patients in tehran, iran, due to importance of these phenotypes in treatment of human infections. methods: eighty eightp. aeruginosa were isolated from patients in tehran, iran, and identified by routine methods and pcr for oprl gene. their...

Since stock cultures of organisms that have been passaged many times in the laboratory may undergo changes in their pathogenicity, concern was expressed as to whether antimicrobial sensitivity tests performed in vitro accurately reflect the clinical responses one might expect in treating patients. Dr. Feeley believed that various strains of the Lyme disease spirochete are stable in vitro, but c...

backgrounds: different susceptibility rates of pathogenic bacteria to antimicrobial agents are considered major factors in the choice of drugs and the success of treatments. concerns have been raised regarding the emergence of antimicrobial resistance among pathogenic bacteria that may result in unpredictable antimicrobial susceptibilities and therapy failure. objectives: the purpose of this in...

To evaluate the occurrence of out-of acceptable ranges and accuracy of antimicrobial susceptibility tests, we applied a new statistical tool to the Inter-Laboratory Quality Control Program established by the Kyushu Quality Control Research Group. First, we defined acceptable ranges of minimum inhibitory concentration (MIC) for broth microdilution tests and inhibitory zone diameter for disk diff...

Wound infections result in sepsis, limb loss, long hospital stays, higher costs, and are responsible for significant human mortality and morbidity worldwide. The aim of this study was to investigate the profile of pathogens cultured from wound infection and determine the antimicrobial susceptibility patterns. A retrospective analysis of bacterial pathogens and their antimicrobial susceptibility...

The importance of the role of environment in the dissemination of antimicrobial resistant bacteria is now well recognized. Thus, bacterial indicators to monitor the phenomena are required. The Aeromonas genus is autochthonous in the aquatic environment and easy to detect in any water type, such as freshwater, or wastewater. These microorganisms are also causing infections in humans and animals ...

BACKGROUNDS: Different susceptibility rates of pathogenic bacteria to antimicrobial agents are considered major factors in the choice of drugs and the success of treatments. Concerns have been raised regarding the emergence of antimicrobial resistance among pathogenic bacteria that may result in unpredictable antimicrobial susceptibilities and therapy failure. OBJECTIVES: The purpose of this in...