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==
-*[[Catalase test::Catalase-negative]] [[Stain::Gram-positive]] [[Cellular shape::coccus]] in pairs or chains
+*Catalase [[Catalase::negative]] [[Stain::Gram-positive]] [[Shape::coccus]] in pairs or chains
 *Two orthogonal classifications
-**Hemolytic properties
+**Hemolytic properties on blood agar
 ***Alpha: incomplete hemolysis (appears green)
 ***Beta: complete hemolysis (appears clear)
@@ Line 11: / Line 11: @@
 ==Species==
+*[[Streptococcus pneumoniae]] (alpha-hemolytic, usually in pairs)
-*Alpha-hemolytic
+*[[Viridans group streptococci]]
-**''[[Streptococcus pneumoniae|S. pneumoniae]]'' (usually in pairs)
-**[[Viridans group streptococci]]
+**[[Streptococcus mitis group]]
-***''S. mitis''
+***[[Streptococcus mitis]]
-***''S. oralis''
+***[[Streptococcus oralis]]
+***[[Streptococcus peroris]]
-***''S. mutans''
+***[[Streptococcus infantis]]
-***''S. sanguinis''
+***[[Streptococcus parasanguinis]]
-***''S. sobrinus''
+***[[Streptococcus cristatus]]
-***Milleri group
+***[[Streptococcus gordonii]]
-****''S. anginosus''
+***[[Streptococcus sanguinis]]
-****''S. constellatus''
+**[[Streptococcus salivarius group]]
-****''S. intermedius''
+***[[Streptococcus salivarius]]
-*Beta-hemolytic
-**Group A: ''[[Streptococcus pyogenes|S. pyogenes]]''
+***[[Streptococcus vestibularis]]
+***[[Streptococcus thermophilus]]
-**Group B: ''S. agalactiae''
+**[[Streptococcus mutans group]]
-**Group G: ''S. dysgalactiae''
+***[[Streptococcus mutans]]
-**Non-Lancefield: ''S. iniae''
+***[[Streptococcus sobrinus]]
-*Gamma-hemolytic
+***[[Streptococcus ratti]]
-**Group D streptococci
-***''[[Streptococcus bovis|S. bovis]]''
+***[[Streptococcus downei]]
+**[[Streptococcus anginosus group]]
-***Previously, ''[[Enterococcus]]'' spp.
+***[[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'' species}}
+{{DISPLAYTITLE:''Streptococcus''}}
 [[Category:Gram-positive cocci]]