Difference between revisions of "Category:Brachyspira and Serpulina"

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(Created page with '*Anaerobic, intestinal spirochaetes, found in normal and diseased pigs *Enterophogens of pigs *''B. hyodysenteriae, B. pilosicoli, B. innocens, Serpulina intermedia'' and ''S. mu…')
 
 
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*Anaerobic, intestinal spirochaetes, found in normal and diseased pigs
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*Enterophogens of pigs
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|pagetitle =Brachyspira and Serpulina
*''B. hyodysenteriae, B. pilosicoli, B. innocens, Serpulina intermedia'' and ''S. murdochii'' occur in pigs
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|pagebody =The ''Brachyspira'' and ''serpulina'' species are anaerobic, intestinal ''[[spirochaetes]]'', found in normal and diseased pigs.
*Carrier pigs shed ''B. hyodysenteriae'' for up to 3 months, acting as a source of infection for healthy pigs
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|contenttitle =Content
*Demonstrated in stained faecal smears or silver-stained histopathology sections
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*Cultured anaerobically on selective blood agar
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<categorytree mode=pages>Brachyspira and Serpulina</categorytree>
*Spirochaetes differentiated by pattern of haemolysis on blood agar as well as molecular techniques
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</b></big>
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*Pathogenesis
 
**Motility in mucous allows colonisation of pig intestine
 
**Haemolytic and cytotoxic activiity important for virulence
 
**Attachment of ''B. pilosicoli'' to epithelial cells of colonic mucosa disrupts their function and leads to their shedding and oedema
 
  
*Clinical infections
 
[[Brachyspira hyodysenteriae]]
 
  
  
[[Brachyspira pilosicoli]]
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[[Category:Spirochaetaceae]]
 
 
**''B. pilosicoli'' causes porcine intestinal spirochaetosis
 
**Infection is acquired via contaminated faeces
 
**Disease spreads slowly through the herd
 
**Dogs, rats, mice and flies may act as transport hosts
 
 
 
*Clinical signs
 
**''B. pilosicoli'' causes less severe signs than [[Brachyspira hyodysenteriae|swine dysentry]]; reduced feed conversion rates occur
 
 
 
*Diagnosis
 
**History, clinical signs and gross pathology
 
**Anaerobic culture on blood agar with added antibiotics for at least 3 days
 
**Immunofluorescence, DNA probes and biochemical tests
 
**Serology using ELISA can be used on a herd basis
 
**PCR
 

Latest revision as of 18:57, 17 January 2011

Brachyspira and Serpulina

The Brachyspira and serpulina species are anaerobic, intestinal spirochaetes, found in normal and diseased pigs.

Pages in category "Brachyspira and Serpulina"

The following 2 pages are in this category, out of 2 total.