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The Genus Streptococcus—Oral

  • Jeremy M. Hardie
  • Robert A. Whiley

The classification of the genus Streptococcus has undergone major revisions since the 1980s as a result of the application of molecular and chemotaxonomic approaches (Schleifer and Kilpper-Bälz, 1987). As a result, two new genera, Enterococcus and Lactococcus, were created from species previously allocated to the enterococcus (or “fecal”) and the lactic groups of streptococci, respectively (Sherman, 1937; Jones, 1978; Hardie, 1986a). In addition, some other species previously considered to be streptococci, such as the anaerobes S. hansenii, S. morbillorum, S. parvulus and S. pleomorphus, have been excluded from the genus (Schleifer and Kilpper-Bälz, 1987; Hardie and Whiley, 1997).

The species that remain within the genus Streptococcus following these taxonomic revisions include those that Sherman (1937) described as the viridans group, and for which others favor the term “oral streptococci” (Jones, 1978; Hardie, 1986b). The type of hemolysis produced by these streptococci when grown...

Keywords

Kawasaki Disease Infective Endocarditis Dental Caries Extracellular Polysaccharide Viridans Streptococcus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Authors and Affiliations

  • Jeremy M. Hardie
  • Robert A. Whiley

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