Streptococcus equisimilis

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Streptococcus equisimilis
Scientific classification
Kingdom: Bacteria
Phylum: Firmicutes
Class: Bacilli
Order: Lactobacillales
Family: Streptococcaceae
Genus: Streptococcus
Species: S. equisimilis

Streptococcus equisimilis is a species of Streptococcus, initially described by Frost in 1936.[1] As a result of several DNA hybridization studies in 1983, the species was merged into Streptococcus dysgalactiae.[2] Subsequently, S.dysgalactiae was divided into the subspecies Streptococcus dysgalactiae subspecies equisimilis and Streptococcus dysgalactiae subspecies dysgalactiae.[3] Although the name Streptococcus equisimilis is no longer valid, it is still encountered both in clinical practice, and in scientific journals.[4]


  1. ^ Frost, M.A. (1940). The Streptococci. Willdorf Book Co, Madison, Wis.
  2. ^ Garvie, J.A.E. (1983). "Streptococcus dysgalactiae (Diernhofer) nom. Rev". Int J Syst Bacteriol. 33: 404–405. doi:10.1099/00207713-33-2-404.
  3. ^ Vandamme, P.; Pot, B.; Falsen, E.; Kersters, K.; Devriese, L. A. (1996-07-01). "Taxonomic study of lancefield streptococcal groups C, G, and L (Streptococcus dysgalactiae) and proposal of S. dysgalactiae subsp. equisimilis subsp. nov". International Journal of Systematic Bacteriology. 46 (3): 774–781. doi:10.1099/00207713-46-3-774. ISSN 0020-7713. PMID 8782689.
  4. ^ Hwang, Yeen Ten; Wobeser, G.; Larivière, S.; Messier, F. (2002-07-01). "Streptococcus equisimilis infection in striped skunks (Mephitis mephitis) in Saskatchewan". Journal of Wildlife Diseases. 38 (3): 641–643. doi:10.7589/0090-3558-38.3.641. ISSN 0090-3558. PMID 12238389.