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Streptococcus pyogenes
Definition 1
A species of facultatively anaerobic, Gram positive, cocci shaped bacteria in the phylum Firmicutes. This species is beta hemolytic, Lancefield group A, pyrrolidonylarylamidase, and arginine deaminase positive and catalase negative. It can ferment salicin, rhamnose, and trehalose but not sorbitol, or ribose. S. pyogenes is found on normal human skin but can act as a pathogen causing streptococcal pharyngitis, acute rheumatic fever, scarlet fever, skin infections, acute glomerulonephritis and necrotizing fasciitis. (NCI Thesaurus)
Definition 2
Any bacterial organism that can be assigned to the species Streptococcus pyogenes. (NCI Thesaurus/CDISC)
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