A spherical, gram-positive bacterium of the genus Streptococcus. Although commonly found benignly in the human mouth and gut, and though many species are non-pathogenic, other species can cause diseases including strep throat and more serious conditions
A genus of spherical, gram-positive bacteria of the phylum Firmicutes. Although commonly found benignly in the human mouth and gut, and though many species are non-pathogenic, other species can cause diseases including strep throat and more serious conditions
streptococci a bacteria that causes infections, especially in the throat. Any of the spheroidal bacteria that make up the genus Streptococcus. The cells characteristically group together in chains resembling a string of beads. Streptococci are gram-positive (see gram stain) and stationary and do not require oxygen. Some species cause infections, including rheumatic fever, scarlet fever, strep throat, and tonsillitis. Others are used in commercial starters for the production of butter, cultured buttermilk, and certain cheeses. See also pneumococcus