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

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===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
 
 
*''Pasteurella'' may be found in [[Bacterial skin infections - Pathology#Deep pyoderma|deep pyoderma]]
 
  
  
  
 
[[Category:Bacteria]][[Category:Gram_negative_bacteria]][[Category:Rods]][[Category:Coccobacilli]]
 
[[Category:Bacteria]][[Category:Gram_negative_bacteria]][[Category:Rods]][[Category:Coccobacilli]]
[[Category:To_Do_-_Bacteria]]
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[[Category:To_Do_-_AimeeHicks]]

Revision as of 09:14, 3 August 2010

Pasteurella and Mannheimia species are small, Gram-negative bacilli or coccobacilli. They are common commensals of the upper respiratory tract and gastrointestinal tract mucosa of animals.