Streptococcus sobrinus nom. rev. and Streptococcus ferus nom. rev.: Habitat of These and Other Mutans Streptococci

Abstract

Streptococcus sobrinus and Streptococcus ferus were not included on the Approved List of Bacterial Names in 1980. Type strains of these species are now available, and I propose that they be recognized. The available evidence indicates that S. ferus is a commensal of wild rats and that S. sobrinus and the other mutans streptococci (except S. ferus) are human commensals.