Streptococcus: Difference between revisions

Revision as of 18:16, 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

Alpha-hemolytic
- Streptococcus pneumoniae (usually in pairs)
- Viridans group streptococci
Beta-hemolytic
- Group A: Streptococcus pyogenes
- Group B: Streptococcus agalactiae
- Group G: Streptococcus dysgalactiae
- Non-Lancefield: Streptococccus iniae
Gamma-hemolytic
- Group D streptococci
  - Streptococcus bovis
  - Previously, Enterococcus spp.

@@ Line 1: / Line 1: @@
 ==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
-**Hemolytic properties
+**Hemolytic properties on blood agar
 ***Alpha: incomplete hemolysis (appears green)
 ***Beta: complete hemolysis (appears clear)
@@ Line 12: / Line 12: @@
 *Alpha-hemolytic
-**''[[Streptococcus pneumoniae|S. pneumoniae]]'' (usually in pairs)
+**[[Streptococcus pneumoniae|Streptococcus pneumoniae]] (usually in pairs)
 **[[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
-**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
 **Group D streptococci
-***''[[Streptococcus bovis|S. bovis]]''
+***[[Streptococcus bovis|Streptococcus bovis]]
-***Previously, ''[[Enterococcus]]'' spp.
+***Previously, [[Enterococcus]] spp.
 {{DISPLAYTITLE:''Streptococcus'' species}}