NCIt definition : A species of facultatively anaerobic, Gram positive, cocci shaped bacteria in the
phylum Firmicutes. This species is alpha hemolytic, alpha glucosidase and urease positive
and negative for catalase and arginine deaminase. It is able to ferment lactose but
not mannitol, sorbitol, inulin, or raffinose. S. vestibularis is found in the human
oral cavity and is not a known human pathogen.;
Alternative definition : CDISC: Any bacterial organism that can be assigned to the species Streptococcus vestibularis.;