Bacterium
Streptococcus salivarius
AMW:MICRO:030202A species of Streptococcus that occurs in the human oral cavity and upper respiratory tract. It is a constituent of DENTAL PLAQUE and some strains may be pathogenic if they enter the bloodstream. However, other strains such as Streptococcus salivarius K12 produce BACTERIOCINS and are used as PROBIOTICS.
Microbiology
biological