Difference between revisions of "Streptococcus suis"

Revision as of 10:47, 17 May 2010

Meningitis, arthritis, septicaemia and pneumonia of pigs
Sporadic cases of endocarditis, neonatal deaths and abortion
Carried in tonsils and nasal cavity of carrier pigs
Outbreaks occur in intensively-reared herds with poor hygiene
Carrier sows infect litters causing neonatal deaths
Meningitis with fever, tremors, incoordination, opisthotonos and convulsions
Treatment with penicillin; prophylactic long-acting penicillin for sows and piglets
Suppurative conditions in cattle, sheep, horses, cats
Septicaemia and meningitis in humans

Streptococcal pneumonia of pigs

Caused by Streptococcus suis type II
Zoonotic
Carried in nasal cavity and lymph nodes of healthy pigs
Some serotypes may cause embolic pneumonia, others suppurative or fibrinous bronchopneumonia, often in combination with other bacteria

@@ Line 1: / Line 1: @@
-{{OpenPagesTop}}
+*Meningitis, arthritis, septicaemia and pneumonia of pigs
-{{Taxobox
+*Sporadic cases of endocarditis, neonatal deaths and abortion
-|name               = ''Streptococcus suis''
+*Carried in tonsils and nasal cavity of carrier pigs
-|kingdom            =
+*Outbreaks occur in intensively-reared herds with poor hygiene
-|sub-kingdom        =
+*Carrier sows infect litters causing neonatal deaths
-|phylum             = Firmicutes
+*Meningitis with fever, tremors, incoordination, opisthotonos and convulsions
-|super-class        =
+*Treatment with penicillin; prophylactic long-acting penicillin for sows and piglets
-|class              = Bacilli
+*Suppurative conditions in cattle, sheep, horses, cats
-|sub-class          =
+*Septicaemia and meningitis in humans
-|super-order        =
-|order              = Lactobacillales
-|sub-order          =
-|super-family       =
-|family             = Streptococcaceae
-|sub-family         =
-|genus              = [[:Category:Streptococcus species|Streptococcus]]
-|species            = ''S. suis''
-}}
-==Introduction==
+===Streptococcal pneumonia of pigs===
-''Streptococcus suis'' is best known for causing '''multisystemic disease and mortality in pigs and septicaemia in poultry'''. It is one of the [[Streptococci|''Streptococcus'' genus]] of '''gram positive cocci'''.
-There are many serotypes of ''S. suis'', most clinical infections generate isolates of capsule types 1-8. '''Capsule type 2''' is responsible for most human infections
+*Caused by ''[[Streptococcus suis]]'' type II
+*Zoonotic
+*Carried in nasal cavity and lymph nodes of healthy pigs
+*Some serotypes may cause [[Lungs Inflammatory - Pathology#Embolic pneumonia|embolic pneumonia]], others suppurative or fibrinous [[Lungs Inflammatory - Pathology#Bronchopneumonia|bronchopneumonia]], often in combination with other bacteria
-==Lifecycle==
+[[Category:Streptococcus_species]][[Category:Pig]][[Category:Cat]][[Category:Cattle]][[Category:Sheep]][[Category:Horse]]
-The bacterium is a '''commensal of healthy pigs''' and is carried in the '''tonsils''' of asymptomatic carrier pigs. It is transmitted via '''respiratory secretions, ingestion of faeces or exudates or vertically from sows'''. Disease usually presents after a stressful incident allows '''opportunistic infection''' by resident microflora from the respiratory or gastrointestinal tracts.
-==Pathogenesis==
-Virulence factors for ''S. suis'' include '''fimbriae, haemagglutinins, capsular antigens, cell wall proteins, IgG binding proteins and haemolysins'''. The capsule protects the bacteria from phagocytosis.<ref>Smith, H. E., Damman, M., Velde, Jvan der., Wagenaar, F., Wisselink, H. J., Stockhofe-Zurwieden, N., Smits, M. A (1999) '''Identification and characterization of the cps locus of Streptococcus suis serotype 2: the capsule protects against phagocytosis and is an important virulence factor'''. ''Infection and Immunity'', 67(4):1750-1756; 43</ref>
-==Diseases==
-Disease is often '''multisystemic''' and includes meningitis, arthritis, [[pericarditis]], [[Pneumonia Overview|pneumonia]], [[endocarditis]], [[rhinitis]] and septicaemia most notably in pigs and poultry but also in cattle, horses, dogs, cats and people. ''S. suis'' is a '''zoonosis of utmost importance.'''
-See [[Streptococcus & Enterococcus Infections - Pigs|infections in pigs]] and [[Streptococcus & Enterococcus Infections - Poultry|infections in poultry]] for details.
-{{Learning
-|flashcards = [[Streptococcus suis Flashcards|''S. suis'' Flashcards]]
-}}
-==References==
-<references/>
-{{CABI source
-|datasheet = [http://www.cabi.org/ahpc/?compid=3&dsid=63346&loadmodule=datasheet&page=2144&site=160 ''Streptococcus suis'']
-|date =6 July 2011
-}}
-<br><br><br>
-{{review}}
-{{OpenPages}}
-[[Category:Streptococcus_species]][[Category:CABI Expert Review]][[Category:CABI AHPC Pages]]
-[[Category:Zoonoses]]

Difference between revisions of "Streptococcus suis"

Revision as of 10:47, 17 May 2010

Streptococcal pneumonia of pigs

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