Streptococcus bovis (S. bovis) is a species of Gram-positive bacteria that in humans is associated with urinary tract infections, endocarditis, sepsis, Ryan K.J. and C.G. Ray CG (editors). 2004. Sherris Medical Microbiology (4th ed.). McGraw Hill. . and colorectal cancer. S. gallolyticus is commonly found in the alimentary tract of cattle, sheep, and other ruminants, and may cause ruminal acidosis or feedlot bloat. It is also associated with spontaneous bacterial peritonitis, a frequent complication occurring in patients affected by cirrhosis. Equivalence with Streptococcus equinus has been contested.
