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Streptococcus agalactiae
Definition 1
A species of facultatively anaerobic, Gram positive, cocci shaped bacteria in the phylum Firmicutes. This species is positive for beta hemolysis, CAMP test, Lancefield group B and arginine deamination and negative for esculin hydrolysis, pyrrolidonylarylamidase and catalase. It can ferment trehalose and ribose but not mannitol or sorbitol. S. agalactiae is a commensal organism of the human gastrointestinal and female genital tracts and is a pathogen is humans causing opportunistic infections and neonatal sepsis. (NCI Thesaurus)
Definition 2
A type of bacterium often found in the vagina. It can cause systemic infections in people with suppressed immune systems. (NCI Dictionary)
Definition 3
Any bacterial organism that can be assigned to the species Streptococcus agalactiae. (NCI Thesaurus/CDISC)