Shigellosis classification: Difference between revisions
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* Serogroup ''C'': ''[[Shigella boydii|S. boydii]]'' (23 serotypes) | * Serogroup ''C'': ''[[Shigella boydii|S. boydii]]'' (23 serotypes) | ||
* Serogroup ''D'': ''[[Shigella sonnei|S. sonnei]]'' (1 serotype) | * Serogroup ''D'': ''[[Shigella sonnei|S. sonnei]]'' (1 serotype) | ||
'''''Shigella boydii''''' is a [[Gram-negative]] [[bacteria]] of the genus ''[[Shigella]]''. Like other member of the [[genus]], ''S. boydii'' is a non-[[Motility|motile]], non-sporeforming, rod-shaped bacteria which can cause [[dysentery]] in humans through [[Fecal-oral route|fecal-oral]] contamination.<ref>{{cite book | author = Ryan KJ; Ray CG (editors) | title = Sherris Medical Microbiology | edition = 4th ed. | publisher = McGraw Hill | year = 2004 | isbn = 0838585299 }}</ref> | |||
''S. boydii'' is the most genetically-divergent of the ''Shigella'' genus.<ref>{{cite journal | author=Feng L, Senchenkova SN, Yang J, Shashkov AS, Tao J, Guo H, Zhao G, Knirel YA, Reeves P, Wang L | title=Structural and genetic characterization of the ''Shigella boydii'' type 13 O antigen | journal=J Bacteriol | year=2004 | pages=383-92 | volume=186 | issue=2 | pmid = 14702307}}</ref> | |||
Group ''A''–''C'' are physiologically similar; ''S. sonnei'' (group ''D'') can be differentiated on the basis of biochemical metabolism assays.<ref>{{cite book | author = Hale TL, Keusch GT | title = Shigella: Structure, Classification, and Antigenic Types. ''in:'' Baron's Medical Microbiology ''(Baron S ''et al'', eds.)| edition = 4th ed. | publisher = Univ of Texas Medical Branch | year = 1996 | url = http://www.ncbi.nlm.nih.gov/books/bv.fcgi?rid=mmed.section.1269 | isbn = 0-9631172-1-1 }}</ref> | Group ''A''–''C'' are physiologically similar; ''S. sonnei'' (group ''D'') can be differentiated on the basis of biochemical metabolism assays.<ref>{{cite book | author = Hale TL, Keusch GT | title = Shigella: Structure, Classification, and Antigenic Types. ''in:'' Baron's Medical Microbiology ''(Baron S ''et al'', eds.)| edition = 4th ed. | publisher = Univ of Texas Medical Branch | year = 1996 | url = http://www.ncbi.nlm.nih.gov/books/bv.fcgi?rid=mmed.section.1269 | isbn = 0-9631172-1-1 }}</ref> | ||
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Overview
Classification
Shigella species are classified by four serogroups:
- Serogroup A: S. dysenteriae (12 serotypes)
- Serogroup B: S. flexneri (6 serotypes)
- Serogroup C: S. boydii (23 serotypes)
- Serogroup D: S. sonnei (1 serotype)
Shigella boydii is a Gram-negative bacteria of the genus Shigella. Like other member of the genus, S. boydii is a non-motile, non-sporeforming, rod-shaped bacteria which can cause dysentery in humans through fecal-oral contamination.[1]
S. boydii is the most genetically-divergent of the Shigella genus.[2]
Group A–C are physiologically similar; S. sonnei (group D) can be differentiated on the basis of biochemical metabolism assays.[3]
References
- ↑ Ryan KJ; Ray CG (editors) (2004). Sherris Medical Microbiology (4th ed. ed.). McGraw Hill. ISBN 0838585299.
- ↑ Feng L, Senchenkova SN, Yang J, Shashkov AS, Tao J, Guo H, Zhao G, Knirel YA, Reeves P, Wang L (2004). "Structural and genetic characterization of the Shigella boydii type 13 O antigen". J Bacteriol. 186 (2): 383–92. PMID 14702307.
- ↑ Hale TL, Keusch GT (1996). Shigella: Structure, Classification, and Antigenic Types. in: Baron's Medical Microbiology (Baron S et al, eds.) (4th ed. ed.). Univ of Texas Medical Branch. ISBN 0-9631172-1-1.