Streptococcus: Difference between revisions

Latest revision as of 12:42, 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

Streptococcus pneumoniae (alpha-hemolytic, usually in pairs)
Viridans group streptococci
Pyogenic group
- Streptococcus pyogenes (beta-hemolytic, group A)
- Streptococcus canis
- Streptococcus urinalis
- Streptococcus dysgalactiae (beta-hemolytic, group G)
  - Streptococcus dysgalactiae subspecies dysgalactiae
  - Streptococcus dysgalactiae subspecies equisimilis
- Streptococcus agalactiae (beta-hemolytic, group B)
- Streptococcus porcinus
- Streptococcus parauberis
- Streptococcus uberis
- Streptococcus iniae
Streptococcus bovis group (gamma-hemolytic, Group D)
Other streptococci

@@ Line 1: / Line 1: @@
+==Microbiology==
-= Streptococcus =
+*Catalase [[Catalase::negative]] [[Stain::Gram-positive]] [[Shape::coccus]] in pairs or chains
-== Classification ==
+*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==
-* Catalase-negative Gram positive cocci in pairs or chains
-* Two orthogonal classifications
-** Hemolytic properties
-*** Alpha: incomplete hemolysis (appears green)
-*** Beta: complete hemolysis (appears clear)
-*** Gamma: no hemolysis
-** Lancefield antigen group (A-H)
+*[[Streptococcus pneumoniae]] (alpha-hemolytic, usually in pairs)
-== Species ==
+*[[Viridans group streptococci]]
+**[[Streptococcus mitis group]]
+***[[Streptococcus mitis]]
+***[[Streptococcus oralis]]
+***[[Streptococcus peroris]]
+***[[Streptococcus infantis]]
+***[[Streptococcus parasanguinis]]
+***[[Streptococcus cristatus]]
+***[[Streptococcus gordonii]]
+***[[Streptococcus sanguinis]]
+**[[Streptococcus salivarius group]]
+***[[Streptococcus salivarius]]
+***[[Streptococcus vestibularis]]
+***[[Streptococcus thermophilus]]
+**[[Streptococcus mutans group]]
+***[[Streptococcus mutans]]
+***[[Streptococcus sobrinus]]
+***[[Streptococcus ratti]]
+***[[Streptococcus downei]]
+**[[Streptococcus anginosus group]]
+***[[Streptococcus anginosus]]
+***[[Streptococcus constellatus]]
+***[[Streptococcus intermedius]]
+*Pyogenic group
+**[[Streptococcus pyogenes]] (beta-hemolytic, group A)
+**[[Streptococcus canis]]
+**[[Streptococcus urinalis]]
+**[[Streptococcus dysgalactiae]] (beta-hemolytic, group G)
+***[[Streptococcus dysgalactiae subspecies dysgalactiae]]
+***[[Streptococcus dysgalactiae subspecies equisimilis]]
+**[[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''}}
-* Alpha-hemolytic
+[[Category:Gram-positive cocci]]
-** ''S. pneumoniae'' (usually in pairs)
-** Viridans group streptococci
-*** ''S. mitis''
-*** ''S. oralis''
-*** ''S. mutans''
-*** ''S. sanguinis''
-*** ''S. sobrinus''
-*** Milleri group
-**** ''S. anginosus''
-**** ''S. constellatus''
-**** ''S. intermedius''
-* Beta-hemolytic
-** Group A: ''S. pyogenes''
-** Group B: ''S. agalactiae''
-** Group G: ''S. dysgalactiae''
-** Non-Lancefield: ''S. iniae''
-* Gamma-hemolytic
-** Group D streptococci
-*** ''S. bovis''
-*** Previously, ''Enterococcus'' spp.