Streptococcus is a
genus of
spherical,
nonmotile,
Gram-positive bacteria that grow in pairs or chains; its members cause diseases such as
strep throat,
tonsillitis, bacterial
pneumonia,
scarlet fever and
rheumatic fever.
From the BioTech Dictionary at http://biotech.icmb.utexas.edu/. For further information see the BioTech homenode.