Streptococcus pyogenes - Revision history

Nnjm2 at 11:22, 27 October 2012

2012-10-27T11:22:19Z

← Older revision		Revision as of 11:22, 27 October 2012
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	''Streptococcus pyogenes'' is a spherical [[Gram-positive\|Gram-positive]] bacterium around 0.6-1.0 µm in diameter, which is enclosed in a capsule and exists in pairs or in chains. It is a non-motile, facultative organism where its metabolism allows it to grow in the presence and absence of [[Oxygen\|oxygen]].  ''Pyogenic streptococci'' are beta-haemolytic and so subsequently cause complete lysis of [[Red blood cells\|red blood cells]] in [[Blood agar\|blood agar]], making them clear and colourless. They produce a large number of enzymes and toxins which contribute to the invasion and pathogenesis of infections that ''Streptococcus pyogenes'' causes <ref>Folds, J. D. and Normansell, D. E. (1999) Pocket Guide to Clinic Immunology. Washington, D.C.: American Society for Microbiology</ref> <ref>Sleigh, J. D. and Timbury, M. C. (1998) Notes on Medical Bacteriology. 5th ed. New York: Churchill Livingstone.</ref>.<br>		''Streptococcus pyogenes'' is a spherical [[Gram-positive\|Gram-positive]] bacterium around 0.6-1.0 µm in diameter, which is enclosed in a capsule and exists in pairs or in chains. It is a non-motile, [[facultative organism\|facultative organism]] where its metabolism allows it to grow in the presence and absence of [[Oxygen\|oxygen]].  ''Pyogenic streptococci'' are beta-haemolytic and so subsequently cause complete lysis of [[Red blood cells\|red blood cells]] in [[Blood agar\|blood agar]], making them clear and colourless. They produce a large number of enzymes and toxins which contribute to the invasion and pathogenesis of infections that ''Streptococcus pyogenes'' causes <ref>Folds, J. D. and Normansell, D. E. (1999) Pocket Guide to Clinic Immunology. Washington, D.C.: American Society for Microbiology</ref> <ref>Sleigh, J. D. and Timbury, M. C. (1998) Notes on Medical Bacteriology. 5th ed. New York: Churchill Livingstone.</ref>.<br>

	They are most commonly found in the oral cavity and from the throat they are able to spread infection elsewhere.		They are most commonly found in the oral cavity and from the throat they are able to spread infection elsewhere.

	=== References:'''<br>''' ===		=== References:'''<br>''' ===

	<references /><br>		<references /><br>

110083375 at 13:15, 26 October 2012

2012-10-26T13:15:28Z

← Older revision		Revision as of 13:15, 26 October 2012
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	''Streptococcus pyogenes'' is a spherical [[Gram-positive\|Gram-positive]] bacterium around 0.6-1.0 µm in diameter, which is enclosed in a capsule and exists in pairs or in chains. It is a non-motile, facultative organism where its metabolism allows it to grow in the presence and absence of [[Oxygen\|oxygen]].  ''Pyogenic streptococci'' are beta-haemolytic and so subsequently cause complete lysis of [[Red blood cells\|red blood cells]] in [[Blood agar\|blood agar]], making them clear and colourless. They produce a large number of enzymes and toxins which contribute to the invasion and pathogenesis of infections that ''Streptococcus pyogenes'' causes <ref>Folds, J. D. and Normansell, D. E. (1999) Pocket Guide to Clinic Immunology. Washington, D.C.: American Society for Microbiology</ref> <ref>Sleigh, J. D. and Timbury, M. C. (1998) Notes on Medical Bacteriology. 5th ed. New York: Churchill Livingstone.</ref>.<br>		''Streptococcus pyogenes'' is a spherical [[Gram-positive\|Gram-positive]] bacterium around 0.6-1.0 µm in diameter, which is enclosed in a capsule and exists in pairs or in chains. It is a non-motile, facultative organism where its metabolism allows it to grow in the presence and absence of [[Oxygen\|oxygen]].  ''Pyogenic streptococci'' are beta-haemolytic and so subsequently cause complete lysis of [[Red blood cells\|red blood cells]] in [[Blood agar\|blood agar]], making them clear and colourless. They produce a large number of enzymes and toxins which contribute to the invasion and pathogenesis of infections that ''Streptococcus pyogenes'' causes <ref>Folds, J. D. and Normansell, D. E. (1999) Pocket Guide to Clinic Immunology. Washington, D.C.: American Society for Microbiology</ref> <ref>Sleigh, J. D. and Timbury, M. C. (1998) Notes on Medical Bacteriology. 5th ed. New York: Churchill Livingstone.</ref>.<br>

			They are most commonly found in the oral cavity and from the throat they are able to spread infection elsewhere.

	=== References:'''<br>''' ===		=== References:'''<br>''' ===

	<references /><br>		<references /><br>

Nnjm2 at 18:54, 15 November 2010

2010-11-15T18:54:57Z

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-Streptococcus pyogenes is a spherical Gram-positive bacterium around 0.6-1.0 µm in diameter, which is enclosed in a capsule and exists in pairs or in chains. It is a non-motile, facultative organism where its metabolism allows it to grow in the presence and absence of oxyge.&nbsp; Pyogenic streptococci are beta-haemolytic and so subsequently cause complete lysis of red blood cells in blood agar, making them clear and colourless. They produce a large number of enzymes and toxins which contribute to the invasion and pathogenesis of infections that Streptococcus pyogenes causes.
+''Streptococcus pyogenes'' is a spherical [[Gram-positive|Gram-positive]] bacterium around 0.6-1.0 µm in diameter, which is enclosed in a capsule and exists in pairs or in chains. It is a non-motile, facultative organism where its metabolism allows it to grow in the presence and absence of [[Oxygen|oxygen]].&nbsp; ''Pyogenic streptococci'' are beta-haemolytic and so subsequently cause complete lysis of [[Red blood cells|red blood cells]] in [[Blood agar|blood agar]], making them clear and colourless. They produce a large number of enzymes and toxins which contribute to the invasion and pathogenesis of infections that ''Streptococcus pyogenes'' causes <ref>Folds, J. D. and Normansell, D. E. (1999) Pocket Guide to Clinic Immunology. Washington, D.C.: American Society for Microbiology</ref>&nbsp;<ref>Sleigh, J. D. and Timbury, M. C. (1998) Notes on Medical Bacteriology. 5th ed. New York: Churchill Livingstone.</ref>.<br>
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+=== References:'''<br>'''  ===
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+<references /><br>

092630024 at 18:10, 15 November 2010

2010-11-15T18:10:36Z

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			'''References:<br>'''

			1) Folds, J. D. and Normansell, D. E. (1999) Pocket Guide to Clinic Immunology. Washington, D.C.: American Society for Microbiology.

			2) Sleigh, J. D. and Timbury, M. C. (1998) Notes on Medical Bacteriology. 5th ed. New York: Churchill Livingstone.





	~~<references />Folds, J. D. and Normansell, D. E. (1999~~) ~~Pocket Guide to Clinic Immunology. Washington, D.C.: American Society for Microbiology.~~

	Sleigh, J. D. and Timbury, M. C. (1998) Notes on Medical Bacteriology. 5th ed. New York: Churchill Livingstone.

092630024 at 18:09, 15 November 2010

2010-11-15T18:09:37Z

← Older revision		Revision as of 18:09, 15 November 2010
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	Streptococcus pyogenes is a spherical Gram-positive bacterium around 0.6-1.0 µm in diameter, which is enclosed in a capsule and exists in pairs or in chains. It is a non-motile, facultative organism where its metabolism allows it to grow in the presence and absence of oxyge.  Pyogenic streptococci are beta-haemolytic and so subsequently cause complete lysis of red blood cells in blood agar, making them clear and colourless. They produce a large number of enzymes and toxins which contribute to the invasion and pathogenesis of infections that Streptococcus pyogenes causes.		Streptococcus pyogenes is a spherical Gram-positive bacterium around 0.6-1.0 µm in diameter, which is enclosed in a capsule and exists in pairs or in chains. It is a non-motile, facultative organism where its metabolism allows it to grow in the presence and absence of oxyge.  Pyogenic streptococci are beta-haemolytic and so subsequently cause complete lysis of red blood cells in blood agar, making them clear and colourless. They produce a large number of enzymes and toxins which contribute to the invasion and pathogenesis of infections that Streptococcus pyogenes causes.

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	<references />Folds, J. D. and Normansell, D. E. (1999) Pocket Guide to Clinic Immunology. Washington, D.C.: American Society for Microbiology.











			<references />Folds, J. D. and Normansell, D. E. (1999) Pocket Guide to Clinic Immunology. Washington, D.C.: American Society for Microbiology.

	Sleigh, J. D. and Timbury, M. C. (1998) Notes on Medical Bacteriology. 5th ed. New York: Churchill Livingstone.		Sleigh, J. D. and Timbury, M. C. (1998) Notes on Medical Bacteriology. 5th ed. New York: Churchill Livingstone.

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Streptococcus pyogenes is a spherical Gram-positive bacterium around 0.6-1.0 µm in diameter, which is enclosed in a capsule and exists in pairs or in chains. It is a non-motile, facultative organism where its metabolism allows it to grow in the presence and absence of oxyge.  Pyogenic streptococci are beta-haemolytic and so subsequently cause complete lysis of red blood cells in blood agar, making them clear and colourless. They produce a large number of enzymes and toxins which contribute to the invasion and pathogenesis of infections that Streptococcus pyogenes causes.

<references />Folds, J. D. and Normansell, D. E. (1999) Pocket Guide to Clinic Immunology. Washington, D.C.: American Society for Microbiology.

Sleigh, J. D. and Timbury, M. C. (1998) Notes on Medical Bacteriology. 5th ed. New York: Churchill Livingstone.