Streptococcus: Difference between revisions

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Streptococcus
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==Species==
==Species==


*[[Streptococcus pneumoniae]] (alpha-hemolytic, usually in pairs)
*Alpha-hemolytic
*[[Viridans group streptococci]]
**[[Streptococcus pneumoniae|Streptococcus pneumoniae]] (usually in pairs)
**[[Viridans group streptococci]]
**[[Streptococcus mitis group]]
***[[Streptococcus mitis]]
***[[Streptococcus mitis]]
***[[Streptococcus oralis]]
***[[Streptococcus oralis]]
***[[Streptococcus mutans]]
***[[Streptococcus peroris]]
***[[Streptococcus infantis]]
***[[Streptococcus parasanguinis]]
***[[Streptococcus cristatus]]
***[[Streptococcus gordonii]]
***[[Streptococcus sanguinis]]
***[[Streptococcus sanguinis]]
**[[Streptococcus salivarius group]]
***[[Streptococcus salivarius]]
***[[Streptococcus vestibularis]]
***[[Streptococcus thermophilus]]
**[[Streptococcus mutans group]]
***[[Streptococcus mutans]]
***[[Streptococcus sobrinus]]
***[[Streptococcus sobrinus]]
***[[Streptococcus anginosus group]]
***[[Streptococcus ratti]]
****[[Streptococcus anginosus]]
***[[Streptococcus downei]]
****[[Streptococcus constellatus]]
**[[Streptococcus anginosus group]]
****[[Streptococcus intermedius]]
***[[Streptococcus anginosus]]
***[[Streptococcus constellatus]]
*Beta-hemolytic
**Group A: [[Streptococcus pyogenes|Streptococcus pyogenes]]
***[[Streptococcus intermedius]]
*Pyogenic group
**Group B: [[Streptococcus agalactiae]]
**Group G: [[Streptococcus dysgalactiae]]
**[[Streptococcus pyogenes]] (beta-hemolytic, group A)
**[[Streptococcus canis]]
**Non-Lancefield: [[Streptococccus iniae]]
**[[Streptococcus urinalis]]
*Gamma-hemolytic
**[[Streptococcus dysgalactiae]] (beta-hemolytic, group G)
**Group D streptococci
***[[Streptococcus bovis|Streptococcus bovis]]
***[[Streptococcus dysgalactiae subspecies dysgalactiae]]
***[[Streptococcus dysgalactiae subspecies equisimilis]]
***Previously, [[Enterococcus]] spp.
**[[Streptococcus agalactiae]] (beta-hemolytic, group B)
**[[Streptococcus porcinus]]
**[[Streptococcus parauberis]]
**[[Streptococcus uberis]]
**[[Streptococcus iniae]]
*[[Streptococcus bovis group]] (gamma-hemolytic, Group D)
**[[Streptococcus bovis]]
**[[Streptococcus infantarius]]
**[[Streptococcus lutentiensis]]
**[[Streptococcus equinus]]
**[[Streptococcus alactolyticus]]
**[[Streptococcus macedonicus]]
**[[Streptococcus waius]]
**[[Streptococcus pasteurianus]]
*Other streptococci
**[[Streptococcus acidominimus]]
***[[Streptococcus suis]]
***[[Streptococcus ovis]]
***[[Streptococcus equi]]
**[[Nutritionally variant streptococci]]
***[[Granulicatella adiacens]]
***[[Granulicatella paraadiacens]]
***[[Granulicatella elegans]]
***[[Abiotrophia defectiva]]
**Previously, [[Enterococcus]] spp.


{{DISPLAYTITLE:''Streptococcus'' species}}
{{DISPLAYTITLE:''Streptococcus''}}
[[Category:Gram-positive cocci]]
[[Category:Gram-positive cocci]]

Latest revision as of 16:42, 12 March 2022

Microbiology

  • Catalase negative Gram-positive coccus in pairs or chains
  • Two orthogonal classifications
    • Hemolytic properties on blood agar
      • Alpha: incomplete hemolysis (appears green)
      • Beta: complete hemolysis (appears clear)
      • Gamma: no hemolysis
    • Lancefield antigen group (A-H)

Species