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Category:Streptococcus species (view source)
Revision as of 16:33, 3 March 2011
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===Overview===
===Overview===
*Haemolytic streptococci of Lancefield group C are common inhabitants of the equine nasopharynx
*Haemolytic streptococci of Lancefield group C are common inhabitants of the equine nasopharynx
*''Streptococcus zooepidemicus'' and ''S. equisimilis'' are usually non-pathogenic
*''Streptococcus zooepidemicus'' and ''S. equisimilis'' are usually non-pathogenic
*Involved in [[Peritoneal Cavity Inflammatory - Pathology#In pigs|peritonitis in pigs]], [[Pleural Cavity & Membranes Inflammatory - Pathology#Pyothorax (Thoracic empyema)|pyothorax]], [[Bones Inflammatory - Pathology#Osteomyelitis|osteomyelitis]], [[Cavity & Gingiva - Pathology#Catarrhal Stomatitis|catarrhal stomatitis]]
*Involved in [[Peritonitis#In pigs|peritonitis in pigs]], [[Pyothorax|pyothorax]], [[Osteomyelitis|osteomyelitis]], [[Stomatitis|catarrhal stomatitis]]
*In infectious [[Joints Inflammatory - Pathology#In Sheep|arthritis of sheep]], [[Joints Inflammatory - Pathology#In Cattle|arthritis in calves]], [[Joints Inflammatory - Pathology#In Horses|arthritis in horses]] and [[Joints Inflammatory - Pathology#In Pigs|arthritis in pigs]]
*In infectious [[Infectious Arthritis#In Sheep|arthritis of sheep]], [[Infectious Arthritis#In Cattle|arthritis in calves]], [[Infectious Arthritis#In Horses|arthritis in horses]] and [[Infectious Arthritis#In Pigs|arthritis in pigs]]
*Often commensals on mucous membranes of upper respiratory and lower urogenital tract
*Often commensals on mucous membranes of upper respiratory and lower urogenital tract
*Opportunistic infections
*Opportunistic infections
===Pathogensis and Pathogenicity===
===Pathogenesis and Pathogenicity===
*Beta-haemolytic strains more pathogenic than alpha-haemolytic strains
*Beta-haemolytic strains more pathogenic than alpha-haemolytic strains
'''in sheep'''
*[[:Category:Streptococcus species|'''''Streptococcus'' spp.''']]
**Commonly cause suppurative polyarthritis in lambs
**Naval infection -> bacteriamia -> polyarthritis
***May also cause blindness and nervous signs if uvea or meninges are affected
**Larger joints are more afected
***May spread to other organs
'''in cattle'''
*Neonatal polyarthritis by:
***Via umbilicus
***Also involves eyes and meninges
[[Category:Bacterial Organisms]]
[[Category:Gram_positive_bacteria]]
[[Category:Cocci]]
[[Category:To_Do_-_Bacteria]]
[[Category:Bacteria]][[Category:Gram_positive_bacteria]][[Category:Cocci]]