Category:Staphylococcus species - Revision history

Suzannah.stacey at 21:34, 5 November 2010

2010-11-05T21:34:01Z

Suzannah.stacey at 19:31, 28 September 2010

2010-09-28T19:31:03Z

Suzannah.stacey: Replaced content with "{{frontpage |pagetitle =Staphylococcus species |pagebody = |contenttitle =Content |contentbody = Staphylococcus species <..."

2010-09-28T19:23:55Z

Replaced content with "{{frontpage |pagetitle =Staphylococcus species |pagebody = |contenttitle =Content |contentbody =<big><b> <categorytree mode=pages>Staphylococcus species</categorytree> </b><..."

Suzannah.stacey at 19:12, 28 September 2010

2010-09-28T19:12:24Z

Suzannah.stacey at 10:34, 24 August 2010

2010-08-24T10:34:24Z

Svycrnj at 22:00, 13 July 2010

2010-07-13T22:00:28Z

Svycrnj at 21:39, 13 July 2010

2010-07-13T21:39:53Z

Svycrnj at 18:27, 12 July 2010

2010-07-12T18:27:33Z

Svycrnj at 18:20, 12 July 2010

2010-07-12T18:20:25Z

Bara at 10:23, 1 July 2010

2010-07-01T10:23:36Z

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 <categorytree mode=pages>Staphylococcus species</categorytree>
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← Older revision		Revision as of 19:31, 28 September 2010
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	[[Category:Cocci]]		[[Category:Cocci]]
	[[Category:Enteritis,_Bacterial]]		[[Category:Enteritis,_Bacterial]]
−	~~[[Category:To_Do_-_NickJ]]~~

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 [[Category:Bacterial Organisms]]

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+[[Staphylococcus species - Introduction]]
 ===Overview===
 There are a large number of ''Staphyloccocus spp'' present in the environment and many are commensals of the skin and mucous membranes of animals and man. Many are opportunistic pathogens causing pyogenic infections as a result of trauma, immunosuppression and secondary to other infections.

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 **Bacterial localise in ''[[Joints - Anatomy & Physiology#Fibrocartilagenous joints|''annulus fibrosis'']] -> may spread to local bone
-[[Category:Bacteria]]
+[[Category:Bacterial Organisms]]
 [[Category:Gram_positive_bacteria]]
 [[Category:Cocci]]
 [[Category:Enteritis,_Bacterial]]
 [[Category:To_Do_-_NickJ]]

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 *Oxidase-negative
-===Detections & Differentiation===
+===Detection & Differentiation===
-The most simple method of detection is to gram stain a sample, usually puss, and to then visualise the distinctive clusters under a microscope. This provides a basic identification of the type of bacteria, however occasionally it is necessary to identify the species that causing the infection. This can be done using various techniques based on the different characteristics of the species. Growing cultures on blood agar will enable identification of haemolytic vs. non haemolytic species. PCR is the most specific method of determining the species of bacteria but requires laboratory analysis of samples.
+The most simple method of detection is to gram stain a sample, usually puss, and to then visualise the distinctive clusters under a microscope. This provides a basic identification of the type of bacteria, however occasionally it is necessary to identify the species that causing the infection. This can be done using various techniques based on the different characteristics of the species. Selective agar such as blood, for haemolysin producing species such as ''S. aureus'' and ''S. intermedius'' as well as non haemolytic species such as ''S. hyicus''. MacConkey agar can be used to identify. PCR is the most specific method of determining the species of bacteria but requires laboratory analysis of samples and is only usually used in research.
 *Coagulase-negative strains vary in ability to cause haemolysis
 *Slide test to detect bound coagulase (clumping factor) on surface of bacteria; bacteria clump within 1-2 minutes
 *Tube test detects free coagulase, secreted by bactera; positive result indicated by clot formation in tube following 24-hour incubation; free coagulase converts prothrombin to thrombin which converts fibrinogen to fibrin
 ===Pathogenesis and pathogenicity===

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 ===Characteristics===
-At least 30 species of ''Staphyloccocus spp.'' have been identified. They appear as gram possitive cocci that form 'grape-like' clusters. They are falcultative anaerobes alowing them to survive in a wide variety of environments.
+Although individual species may vary slightly, most have similar characteristics.
 *''S. aureus'' and ''S. intermedius'' produce double haemolysis; they produce alpha-haemolysin and beta-haemolysin
 *''S. hyicus'' is non-haemolytic

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 ===Overview===
 *Enodgenous or exogenous infections
 *'''Coagulase-positive''' ''S. aureus'' and ''S. intermedius'' as well as ''S. hyicus'' are important pathogens of animals
 *Fairly stable in environment
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 ===Characteristics===
 *Clusters of Gram-positive cocci

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-'''sheep===
+'''sheep'''
 *[[:Category:Staphylococcus species|'''''Staphylococci''''']]
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 **In one or more joints
 **Commonly contaminate wounds
 [[Category:Bacteria]][[Category:Gram_positive_bacteria]][[Category:Cocci]]
 [[Category:Enteritis,_Bacterial]]
 [[Category:To_Do_-_Bacteria]]