Streptococcus pyogenes

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Streptococcus

 [strep″to-kok´us]
a genus of gram-positive, facultatively aerobic cocci (family Streptococcaceae) occurring in pairs or chains. It is separable into the pyogenic group, the viridans group, the enterococcus group, and the lactic group. The first group includes the beta-hemolytic human and animal pathogens; the second and third include alpha-hemolytic parasitic forms occurring as normal flora in the upper respiratory tract and the intestinal tract, respectively; and the fourth is made up of saprophytic forms.
Streptococcus mu´tans a species implicated in dental caries.
Streptococcus pneumo´niae a small, slightly elongated, encapsulated coccus, one end of which is pointed or lance-shaped; the organisms commonly occur in pairs. This is the most common cause of lobar pneumonia, and it also causes serious forms of meningitis, septicemia, empyema, and peritonitis. There are some 80 serotypes distinguished by the polysaccharide hapten of the capsular substance. Called also pneumococcus.
Streptococcus pyo´genes a beta-hemolytic, toxigenic, pyogenic species that causes septic sore throat, scarlet fever, rheumatic fever, puerperal fever, acute glomerulonephritis, and other conditions in humans.

Strep·to·coc·cus py·og·e·nes

a bacterial species found in the human mouth, throat, and respiratory tract and in inflammatory exudates, the bloodstream, and cellulitic lesions in human diseases; it is sometimes found in the udders of cows and in dust from sickrooms, hospital wards, schools, theaters, and other public places; it causes the formation of pus, fatal septicemia, and necrotizing fascitis and myositis. There is also a specific somatic antigen (M protein) for each of the approximately 85 types. It is the type species of the genus Streptococcus.

Strep·to·coc·cus py·og·e·nes

(strep'tō-kok'ŭs pī-oj'ĕ-nēz)
A bacterial species found in the human mouth, throat, and respiratory tract and in inflammatory exudates, bloodstream, and lesions in human diseases; it is sometimes found in the udders of cows and in dust from sickrooms, hospital wards, schools, theaters, and other public places; it causes the formation of pus or even fatal septicemias.

Streptococcus pyogenes

A common bacterium that causes strep throat and can also cause tonsillitis.
Mentioned in: Tonsillitis

Strep·to·coc·cus py·og·e·nes

(strep'tō-kok'ŭs pī-oj'ĕ-nēz)
A bacterial species found in the human mouth, throat, and respiratory tract and in inflammatory exudates, bloodstream, and lesions in human diseases found in dust from sickrooms, hospital wards, schools, theaters, and other public places; causes formation of pus or even fatal septicemias.
References in periodicals archive ?
We analyzed 15 isolates of S. pyogenes obtained from rabbits (n = 14) and sheep (n = 1) in Spain during 2006-2014 (Table 1).
To determine if films containing CNP were antimicrobial, and to determine if the activity correlated with the concentration CNPs incorporated into the films, we measured the viability of S. pyogenes exposed to films created with six different concentrations of nanoparticles, ranging from zero nanoparticles (PVB) to films incorporating a 2:1 mass ratio of CNPs to PVB.
Especially noteworthy was the activity against S. pyogenes with a very low minimal inhibitory concentration (MIC = 0.39-0.78 [micro]g/ml) (Limsuwan et al.
The fraction also produced a zone of inhibition of 26mm around S. pyogenes compared to 26mm produced by ampicilin (table 2).
In the case of S. pyogenes, the macrolide erythromycin can elicit the production of the enzyme whereas the lincosamide clindamycin cannot.
The purpose of this study was to integrate genomic data with other epidemiologic data in the investigation and control of a cross-institutional outbreak of S. pyogenes infection.
Howarth's team at the University of Oxford in the United Kingdom genetically engineered the glue from a protein, FbaB, that helps Streptococcus pyogenes (S. pyogenes) bacteria infect cells.
They have good activity against S. pyogenes and methicillin-resistant S.
Although Health Protection regulations in England require clinicians to report suspected cases of scarlet fever, molecular surveillance of noninvasive S. pyogenes is not feasible because testing for S.