The biochemical characteristics of 172 clinical isolates of group A, C, F, or G or "nongroupable" beta-hemolytic streptococci were examined. Among these isolates, 91 were identified as beta-hemolytic strains of Streptococcus milleri. The remaining isolates included 20 Streptococcus pyogenes, 21 Streptococcus equisimilis, 37 large-colony group G streptococci, and 3 unidentified nongroupable isol...

this study was undertaken in order to ascertain the carrier rate of group a hemolytic streptococci in the throats of pupils in selected schools of tehran, and to evaluate the role of socio-economical factors on carrier state. during the period of six months, 7020 children and adolescents, aged 10 to 17, were studied. these pupils were visited at their schools and their socio-economical level wa...

Twenty-nine lots of Bacti-Lab streptococci culture plates containing nalidixic acid, neomycin, and amphotericin B were inoculated with 25 strains of group A, B, C, F, and G strepotocci, 13 strains of nonstrepotcoccal organisms representative of the throat flora, and 198 fresh clinical thorat specimens to determine the accuracy of the plates in identifying group A streptococci. With the Bacti-La...

2. Markowitz, M.: Eradication of rheumatic fever. An unfulfilled hope. Circulation, 41:1077, 1970. 3. Czoniczer, C., Lees, M., and Massell, B. F: Streptococcal infection. The need for improved recognition and treatment for the prevention of rheumatic fever. New Eng. J. Med., 265:951, 1961. 4. Grossman, B. J., and Stamler, J.: Potential preventability of first attacks of acute rheumatic fever in...

Background: Atypical hemolytic uremic syndrome (aHUS) is a life-threatening and scarce disorder characterized by acute renal failure and disease, non-immune microangiopathic hemolytic anemia and thrombocytopenia, leading to end-stage renal failure or death, and consequently maybe accompanying by extra renal manifestations. Case report: We reported aHUS accompanied by autoimmune hemolytic anemi...

The aim of this study was to investigate antimicrobial susceptibilities and macrolide resistance mechanisms of beta-hemolytic viridans group streptococci (VGS) in a tertiary Korean hospital. Minimum inhibitory concentrations (MICs) of seven antimicrobials were determined for 103 beta-hemolytic VGS isolated from various specimens. The macrolide resistance mechanisms of erythromycin-resistant iso...

Group B beta-hemolytic streptococci (GB-BHS) frequently cause severe infection in newborns. Previous in vitro studies showed accelerated killing of GBBHS by ampicillin plus gentamicin as compared with ampicillin alone. To extend the in vitro observations, mice were infected experimentally with GBBHS and treated with gentamicin plus ampicillin or ampicillin alone. Untreated mice died within 10 t...