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Sep 15, 2022 · After the detection of β-hemolytic colonies displaying a typical S. pyogenes morphology, catalase testing confirms that the isolates represent streptococci. A few easy, rapidly performed laboratory tests can then be applied for definite species identification.
Jun 18, 2022 · On blood agar, S. pyogenes form circular pinpoint colonies that are similar in morphology to the colonies formed on other solid agar media. Light golden yellow colonies are formed that are surrounded by a clear zone exhibiting β-hemolysis.
Jul 31, 2023 · This activity describes the bacterium Streptococcus pyogenes (S. pyogenes) and reviewed the epidemiology, clinical manifestations of S. pyogenes infections, evaluation, and management of clinical infections caused by S. pyogenes.
Jan 1, 2024 · Streptococcus pyogenes is a notorious member of gram-positive pathogenic bacteria causing a wide range of diseases in its sole host, humans. Despite the overall decrease of incidence, the past decade has witnessed its outbreaks and spreading in certain areas and populations with inadequate public health supplies.
This review summarizes our current knowledge of the molecular mechanisms of GAS adhesion and colonization. Keywords: Streptococcus pyogenes; adherence; biofilm; colonization; pathogenesis; transcriptional regulation. © 2016 Federation of European Biochemical Societies.
Mar 9, 2023 · Streptococcus pyogenes(Group A Streptococcus; GAS) is a Gram-positive host-adapted bacterial pathogen causing benign human infections such as pharyngitis and impetigo, through to rare yet...
Feb 10, 2016 · After the detection of β-hemolytic colonies displaying a typical S. pyogenes morphology, catalase testing confirms that the isolates represent streptococci. A few easy, rapidly performed laboratory tests can then be applied for definite species identification.
