Implementation of the Verigene Gram-positive blood culture test led to reductions in time to acceptable antibiotic overall (1.9 versus 13.2 h, respectively; P=0.04) and time to appropriate antibiotic for patients with vancomycin-resistant Enterococcus (4.2 versus 43.7 h; P=0.006) and viridans group Streptococcus (0.2 versus 7.1 h; P=0.02).

Introduction. I. Nutrition of the Blood Vessel 'Wall: Review of the Literature. II. The Response of the Rabbit's Carotid Artery to Injuries. Introduction. Material and Methods. The Effect of Double Ligation. The Effects of Injection of Streptococcus viridans and of Silica. The Effects of Injection of Tubercle Bacilli and of Colloidal Cholesterol. Discussion. III. Studies on Experimental Coronar...

Linezolid was tested against 32 species of uncommonly isolated gram-positive organisms (3,251 strains) by reference MIC methods and found to be highly active (MIC50 range, 0.25 to 2 microg/ml; MIC90 range, 0.25 to 2 microg/ml). Only one isolate (viridans group streptococcus; 0.03% of tested strains) was resistant to linezolid.

We assessed the mechanisms of resistance to macrolide-lincosamide-streptogramin B (MLS(B)) antibiotics and related antibiotics in erythromycin-resistant viridans group streptococci (n = 164) and Gemella spp. (n = 28). The macrolide resistance phenotype was predominant (59.38%); all isolates with this phenotype carried the mef(A) or mef(E) gene, with mef(E) being predominant (95.36%). The erm(B)...

Septic arthritis may represent a direct invasion of joint space by various microorganisms, including bacteria, viruses and fungi. Although any infectious agent may cause bacterial arthritis, bacterial pathogens are the most significant because of their rapidly destructive nature. We present a case of septic arthritis in a 56-year old male patient due to Streptococcus viridans which is member of...

Facklamia sp are Gram-positive cocci that are often mistaken for viridans streptococci, but they rarely cause invasive disease. In this report, we describe a case of mixed Facklamia sp and Streptococcus pneumoniae meningitis in an immunocompetent host with sinusitis. This case demonstrates that Facklamia sp may be part of normal human flora but can be associated with invasive disease.

A new medium designated as D streptococcus-enterococcus broth was formulated and evaluated for the enrichment and isolation of strains of serological group D streptococci. This medium was made by modifying Todd-Hewitt broth. Most-probable-number multiple-tube and membrane filter techniques were employed to estimate the numbers of enterococci in known cultures, wastewater, and other samples. Pre...