Streptococcus: Difference between revisions

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Streptococcus
m (Text replacement - "\[\[Catalase test::(.*?)-(.*?)\]\]" to "$1 Catalase::$2")
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==Microbiology==
==Microbiology==


*Catalase-negative]] [[Stain::Gram [[Catalase::positive]] [[Cellular shape::coccus]] in pairs or chains
*Catalase [[Catalase::negative]] [[Stain::Gram-positive]] [[Cocci|Cellular shape::coccus]] in pairs or chains
*Two orthogonal classifications
*Two orthogonal classifications
**Hemolytic properties
**Hemolytic properties on blood agar
***Alpha: incomplete hemolysis (appears green)
***Alpha: incomplete hemolysis (appears green)
***Beta: complete hemolysis (appears clear)
***Beta: complete hemolysis (appears clear)
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*Alpha-hemolytic
*Alpha-hemolytic
**''[[Streptococcus pneumoniae|S. pneumoniae]]'' (usually in pairs)
**[[Streptococcus pneumoniae|Streptococcus pneumoniae]] (usually in pairs)
**[[Viridans group streptococci]]
**[[Viridans group streptococci]]
***''S. mitis''
***[[Streptococcus mitis]]
***''S. oralis''
***[[Streptococcus oralis]]
***''S. mutans''
***[[Streptococcus mutans]]
***''S. sanguinis''
***[[Streptococcus sanguinis]]
***''S. sobrinus''
***[[Streptococcus sobrinus]]
***Milleri group
***[[Streptococcus anginosus group]]
****''S. anginosus''
****[[Streptococcus anginosus]]
****''S. constellatus''
****[[Streptococcus constellatus]]
****''S. intermedius''
****[[Streptococcus intermedius]]
*Beta-hemolytic
*Beta-hemolytic
**Group A: ''[[Streptococcus pyogenes|S. pyogenes]]''
**Group A: [[Streptococcus pyogenes|Streptococcus pyogenes]]
**Group B: ''S. agalactiae''
**Group B: [[Streptococcus agalactiae]]
**Group G: ''S. dysgalactiae''
**Group G: [[Streptococcus dysgalactiae]]
**Non-Lancefield: ''S. iniae''
**Non-Lancefield: [[Streptococccus iniae]]
*Gamma-hemolytic
*Gamma-hemolytic
**Group D streptococci
**Group D streptococci
***''[[Streptococcus bovis|S. bovis]]''
***[[Streptococcus bovis|Streptococcus bovis]]
***Previously, ''[[Enterococcus]]'' spp.
***Previously, [[Enterococcus]] spp.


{{DISPLAYTITLE:''Streptococcus'' species}}
{{DISPLAYTITLE:''Streptococcus'' species}}

Revision as of 22:16, 21 August 2020

Microbiology

  • Catalase negative Gram-positive Cellular shape::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