Laboratory differentiation of erythromycin resistance phenotypes is poorly standardized for pneumococci. In this study, 85 clinical isolates of erythromycin-resistant (MIC > or = 1 microg/ml) Streptococcus pneumoniae were tested for the resistance phenotype by the erythromycin-clindamycin double-disk test (previously used to determine the macrolide resistance phenotype in Streptococcus pyogenes...

β-lactams are the most widely used group of antimicrobials. However, increasing resistance to these valuable drugs in uropathogens, mediated principally by β-lactamases, has become a major concern. The present study was undertaken to determine the prevalence of Extended Spectrum β-Lactamase (ESBL) producers in clinical isolates of urine specimens, collected from various healthcare centres acros...

BACKGROUND The resistance of aminoglycosides in strains that produce beta-lactamase can be developed through the multidrug resistant encoding genes carried by common plasmids. Recently, the association between 16S rRNA methyltransferase resistance and beta-lactamase enzymes carried by the same plasmids has drawn increased attention from researchers, particularly the association in aminoglycosid...

Submitted 11 Jan 2017; Accepted 6 Feb 2017; Published 13 Feb 2017 Extended-spectrum β-lactamase (ESBL)-producing Enterobacteria has become a considerable global concern because of their potential dissemination in humans, in domestic animals, wildlife and the environment. The present study aimed to explore the ESBL producing enterobacteria in aquatic sources of Bangladesh as the water may be the...

Aims: The objective of the study was to ascertain antimicrobial susceptibility pattern and ESBL prevalence bacteria isolated from snacks.
 Place Duration Study: Department Microbiology (Laboratory Unit) Michael Okpara University Agriculture Umudike.
 Methodology: snacks were mashed aseptically, serially diluted inoculated onto nutrient agar MacConkey agar. Isolates identified using st...

OBJECTIVES Plasmid-mediated AmpC β-lactamases (PMABLs) and carbapenemases are emerging groups of antimicrobial-resistance determinants. The aims of the study were to evaluate the occurrence of PMABLs and carbapenemases in clinical isolates of Klebsiella pneumoniae and compare the test performance of various phenotypic methods for detection of these enzymes in Iran. METHODS A total of 100 K. p...

BACKGROUND AmpC type β-lactamases are commonly isolated from extended-spectrum Cephalosporin-resistant Gram-negative bacteria. Also, resistance appeared in bacterial species not naturally producing AmpC enzymes. Therefore, a standard test for the detection of the plasmid-mediated AmpC enzyme and new breakpoints for extended spectrum Cephalosporins are urgently necessary. OBJECTIVES To detect ...

Escherichia coli and Klebsiella sp. are the predominant species isolated from clinical samples. Recent proper understanding of antibiotic susceptibility pattern extended-spectrum β-lactamases (ESBL) AmpC (AmpC) producing E. will prevent distribution future incidence ESBL AmpC. We designed this study to understand patterns a tertiary care hospital in North India. A cross-sectional was conducted ...