Three hundred and three strains of group A streptococci (GAS) isolated from adults with pharyngitis were tested to evaluate their phenotype of resistance to macrolides-lincosamides and to search for macrolide resistance genes. MICs of clarithromycin were determined. The overall rate of resistance to both erythromycin and clarithromycin was 9.6%. Constitutive, inducible and M phenotypes of resis...

Abstract This study aims to find the cumulative energy demand (CED) and cost (CCD) in synthesis of antistatic bionanocomposites (AS BNC) compared with polypropylene (PP). The CED was identified using SimaPro 9.1.1 software, CCD material flow analysis (MEFA) method. results show that required per kg mass AS BNC pellets 87.80 MJ, which is lower than PP (91.19 MJ). shows use 94.38% PP, 2% M-DAG, 2...

Viridans group streptococci form the major part of the commensal flora of the human upper respiratory tract. However, these organisms are also the leading cause of infective endocarditis and an increasing source of bacteremia in neutropenic patients (1). Beta-lactam agents are the treatment of choice for these infections, but macrolides and related drugs are recommended for prophylaxis and alte...

BACKGROUND In the last decade, the Streptococcus pneumoniae population has changed, mainly due to the abuse of antibiotics. The aim of this study was to determine the genetic structure of 144 S. pneumonia serotype 14 isolates collected from children with acute respiratory infections during 1997-2012 in China. METHODS All isolated pneumococci were tested for their sensitivity to 11 kinds of an...

BACKGROUND Dissemination of antibiotic resistant clones is recognized as an important factor in the emergence and prevalence of resistance in pneumococcus. This study was undertaken to survey the antimicrobial susceptibility and serotypes distribution of pneumococci and to explore the circulating clones in hospitalized children in Suzhou, China. METHODS The pneumococci were isolated from the ...

Aims: The aims of our study were to determine epidemiological markers of S. pyogenes isolates as well as the antimicrobial activities against these strains and we determined the macrolide and tetracycline resistance genes. Methodology and Results: We studied the epidemiological markers of 148 Streptococcus pyogenes isolates collected from children in Tunisia between October 2000 and December 20...