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<big><center>[[Infectious agents and parasites|'''BACK TO INFECTIOUS AGENTS AND PARASITES''']]</center></big>
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#REDIRECT[[:Category:Pasteurella and Mannheimia species]]
<big><center>[[Bacteria|'''BACK TO BACTERIA''']]</center></big>
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*''Pasteurella multocida'' in [[Nasal cavity - inflammatory#Bacterial rhinitis|Atrophic rhinitis of pigs]] and [[Bacterial infections#In Pigs|atrophic rhinitis]]
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* [[Peritoneal cavity - inflammatory#Peritonitis|Peritonitis in sheep]]
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* [[General Pathology - Oedema#Permeability type|Permeability types of pulmonary oedema]].
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* Can be secondary to [[Viral infections#In Cattle|IBR]]
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*Causes [[Bacterial infections#In Rabbits|'Snuffles' in rabbits]]
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*''Manheimia haemolytica'' biotype A serotype 1 (90%) and ''Pasteurella multocida'' cause [[Bacterial infections#Pneumonic pasteurellosis|pneumonic pasteurellosis]]
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*[[Bacterial infections#Pasteurellosis in pigs|Pasteurellosis in pigs]]
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* Can cause vascular fragility, leading to [[General Pathology - Haemostasis#Haemorrhagic Disease Due To Vascular Fragility|haemorrhagic disease]].
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*''M. haemolytica'' and ''P. multocida'' may contribute to [[Bacterial infections#Enzootic pneumonia of calves|Enzootic pneumonia of calves]]
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*Often follows [[Viral infections#Parainfluenza- 3|parainfluenza - 3]] infection of cattle
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*''P. haemolytica'' in [[Bacterial infections#Enzootic pneumonia of lambs|enzootic pneumonia of lambs]]
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*In [[Pleural cavity and membranes - inflammatory#Pyothorax (Thoracic empyema)|pyothorax]]
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*''P. multocida'' in [[Muscles - inflammatory#Abscesses|cellulitis]] in cats
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===Overview ''Pasteurella''===
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*Common commensal of the upper respiratory tract and gastrointestinal tract mucosa of animals
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*Usually opportunistic organisms, causing disease during times of stress, low resistance or concurrent infections
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*Resist phagocytosis by their capsule
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*Not part of the human bacterial flora
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===Bacteria Properties===
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*Short Gram-negative bacilli or coccobacilli
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*Oxidase-positive
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*May show bipolar staining
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*Catarrhal odour
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*Produce endotoxins which cause host damage and death
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===''Pasteurella multocida''===
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*Large grey colonies on blood agar
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*Not haemolytic
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*Do not grow on MacConkey
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*Four capsular serotypes, A,B,D,E and recently F
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*Primary and secondary pathogen
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*Causes Haemorrhagic Septicaemia in cattle
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*Contributes to Atropic Rhinitis in pigs
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*Causes septicaemia in chickens and turkeys known as folw cholera
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*Involved in Snuffles (Pasteurellosis) in rabbits
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*Responsible for secondary infections following primary viral and mycoplasmal infections, especially in the lungs, for example during pig enzootic pneumonia
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*Typa A
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**Commensal in upper respiratory tract of animals in UK
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**Commomly repsonsible for dog and cat bite wound infections in humans and animals
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**Some strains involved in Atropic Rhinitis, and produce osteolytic toxin
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*Type B
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**Causes Haemorrhagic Septicaemia of cattle in Southern Europe and Asia
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*Type D
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**Causes Atropic Rhinitis along with ''Bordetella bronchiseptica'' in pigs
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**Produces an osteolytic toxin, which stimulates osteoclast, inducing bone resorption
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*Type E
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**Causes Afican Bovine Haemorrhagic Septicaemia
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===''Pasteurella pneumotropica''===
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*Carried in nasopharynx of many small rodents
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*Causes pneumonia in rodents as a secondary disease
 
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