نتایج جستجو برای: b hemolytic streptococcus
تعداد نتایج: 949302 فیلتر نتایج به سال:
Streptococcus pyogenes (group A Streptococcus; GAS) causes clinical diseases, including pharyngitis, scarlet fever, impetigo, necrotizing fasciitis and streptococcal toxic shock syndrome. A number of group A streptococcus vaccine candidates have been developed, but only one 26-valent recombinant M protein vaccine has entered clinical trials. Differing from the design of a 26-valent recombinant ...
BACKGROUND Knowledge of the causative organism(s) in bacterial rhinosinusitis has become the cornerstone of adequate medical and surgical management. Little uniformity and data exist for the best method of obtaining sinus cultures. Most otolaryngologists tend to use the nasal swab for obtaining transnasal middle meatal cultures. A prospective study was carried out to compare the effectiveness o...
A custom-designed microarray containing 220 virulence genes of Streptococcus pyogenes (group A Streptococcus [GAS]) was used to test group C Streptococcus dysgalactiae subsp. dysgalactiae (GCS) field strains causing bovine mastitis and group C or group G Streptococcus dysgalactiae subsp. equisimilis (GCS/GGS) isolates from human infections, with the latter being used for comparative purposes, f...
A glycerol lipoteichoic acid antigen from Streptococcus pyogenes 1-RP41 was found by rabbit erythrocyte hemolytic assay to activate the alternative complement pathway in human sera. Over a narrow concentration range of the teichoic acid, complement consumption was dose dependent, whereas at higher concentrations of the acid complement consumption could not be detected.
β-Hemolytic group C and group G streptococci (GCS-GGS; Streptococcus dysgalactiae subsp. equisimilis) emerged as human pathogens in the late 1970s. We report here the draft genome sequences of four genetically distinct human strains of GCS-GGS isolated between the 1960s and 1980s. Comparative analysis of these genomes may provide a deeper understanding of GCS-GGS genome and virulence evolution.
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