Category:Brachyspira and Serpulina

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  • Anaerobic, intestinal spirochaetes, found in normal and diseased pigs
  • Enterophogens of pigs
  • B. hyodysenteriae, B. pilosicoli, B. innocens, Serpulina intermedia and S. murdochii occur in pigs
  • Carrier pigs shed B. hyodysenteriae for up to 3 months, acting as a source of infection for healthy pigs
  • Demonstrated in stained faecal smears or silver-stained histopathology sections
  • Cultured anaerobically on selective blood agar
  • Spirochaetes differentiated by pattern of haemolysis on blood agar as well as molecular techniques
  • 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

Pages in category "Brachyspira and Serpulina"

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