Difference between revisions of "Category:Pasteurella and Mannheimia species"

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===Overview ''Pasteurella'' and ''Mannheimia''===
 
===Overview ''Pasteurella'' and ''Mannheimia''===
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[[Category:Bacteria]][[Category:Gram_negative_bacteria]][[Category:Rods]][[Category:Coccobacilli]]

Revision as of 13:16, 24 May 2010


Overview Pasteurella and Mannheimia

  • Common commensals of the upper respiratory tract and gastrointestinal tract mucosa of animals
  • Usually opportunistic organisms, causing disease during times of stress, low resistance or concurrent infection
  • Not part of the human bacterial flora
  • Small Gram-negative bacilli or coccobacilli
  • Facultative anaerobes
  • Oxidase-positive
  • May show bipolar staining with polychrome stains such as Wright's stain
  • Capsules contain acidic polysaccharides

Pasteurella Properties

  • Catarrhal odour
  • Produce endotoxins which cause host damage and death
  • Their capsules resist phagocytosis