Difference between revisions of "Pasteurella species and Mannheimia haemolytica"
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*In [[Pleural cavity and membranes - inflammatory#Pyothorax (Thoracic empyema)|pyothorax]] | *In [[Pleural cavity and membranes - inflammatory#Pyothorax (Thoracic empyema)|pyothorax]] | ||
*''P. multocida'' in [[Muscles - inflammatory#Abscesses|cellulitis]] in cats | *''P. multocida'' in [[Muscles - inflammatory#Abscesses|cellulitis]] in cats | ||
+ | |||
+ | ===Overview ''Pasteurella''=== | ||
+ | |||
+ | *Found in the upper respiratory tract and gastrointestinal tract mucosa | ||
+ | *Usually opportunistic organisms, causing disease during times of stress, low resistance or concurrent infections | ||
+ | *Resist phagocytosis by their capsule | ||
+ | *Not part of the human bacterial flora | ||
+ | |||
+ | ===Bacteria Properties=== | ||
+ | |||
+ | *Short Gram-negative bacilli | ||
+ | *Oxidase-positive | ||
+ | *May show bipolar staining | ||
+ | *Catarrhal odour | ||
+ | *Produce endotoxins which cause host damage and death | ||
+ | |||
+ | ===''Pasteurella multocida''=== | ||
+ | |||
+ | *===Typa A=== | ||
+ | **Commensal in upper respiratory tract of animals in UK | ||
+ | **Commomly repsonsible for dog and cat bite wound infections in humans and animals | ||
+ | **Some strains involved in Atropic Rhinitis, and produce osteolytic toxin | ||
+ | |||
+ | *===Type B=== | ||
+ | **Causes Haemorrhagic Septicaemia of cattle in Southern Europe and Asia | ||
+ | |||
+ | *===Type D=== | ||
+ | **Causes Atropic Rhinitis along with ''Bordetella bronchiseptica'' | ||
+ | **Produces an osteolytic toxin, which stimulates osteoclast, inducing bone resorption | ||
+ | |||
+ | *===Type E=== | ||
+ | **Causes Afican Bovine Haemorrhagic Septicaemia | ||
+ | |||
+ | ===''Pasteurella pneumotropica''=== | ||
+ | |||
+ | *Carried in nasopharynx of many small rodents | ||
+ | *Causes pneumonia in rodents as a secondary disease |
Revision as of 17:10, 16 December 2007
- Pasteurella multocida in Atrophic rhinitis of pigs and atrophic rhinitis
- Peritonitis in sheep
- Permeability types of pulmonary oedema.
- Can be secondary to IBR
- Causes 'Snuffles' in rabbits
- Manheimia haemolytica biotype A serotype 1 (90%) and Pasteurella multocida cause pneumonic pasteurellosis
- Pasteurellosis in pigs
- Can cause vascular fragility, leading to haemorrhagic disease.
- M. haemolytica and P. multocida may contribute to Enzootic pneumonia of calves
- Often follows parainfluenza - 3 infection of cattle
- P. haemolytica in enzootic pneumonia of lambs
- In pyothorax
- P. multocida in cellulitis in cats
Overview Pasteurella
- Found in the upper respiratory tract and gastrointestinal tract mucosa
- Usually opportunistic organisms, causing disease during times of stress, low resistance or concurrent infections
- Resist phagocytosis by their capsule
- Not part of the human bacterial flora
Bacteria Properties
- Short Gram-negative bacilli
- Oxidase-positive
- May show bipolar staining
- Catarrhal odour
- Produce endotoxins which cause host damage and death
Pasteurella multocida
- ===Typa A===
- Commensal in upper respiratory tract of animals in UK
- Commomly repsonsible for dog and cat bite wound infections in humans and animals
- Some strains involved in Atropic Rhinitis, and produce osteolytic toxin
- ===Type B===
- Causes Haemorrhagic Septicaemia of cattle in Southern Europe and Asia
- ===Type D===
- Causes Atropic Rhinitis along with Bordetella bronchiseptica
- Produces an osteolytic toxin, which stimulates osteoclast, inducing bone resorption
- ===Type E===
- Causes Afican Bovine Haemorrhagic Septicaemia
Pasteurella pneumotropica
- Carried in nasopharynx of many small rodents
- Causes pneumonia in rodents as a secondary disease