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{| cellpadding="10" cellspacing="0" border="1"
| Also known as:
| ''P.multocida''
|-
|}
''P.multocida'' is a species of the [[:Category:Pasteurella and Mannheimia species|''Pasteurella'']] genus. It forms large, grey colonies on blood agar and is not haemolytic. It does not grow on MacConkey. It has five capsular serotypes, A,B,D,E and F and can be a primary and secondary pathogen. It is responsible for secondary infections following primary viral and mycoplasmal infections, especially in the lungs, for example during [[Respiratory Bacterial Infections - Pathology#Enzootic pneumonia of calves|Enzootic pneumonia of calves]] and pigs. It can cause vascular fragility, leading to [[Haemostasis - Pathology#Haemorrhagic Disease Due To Vascular Fragility|haemorrhagic disease]]. It is also involved in [[Bacterial skin infections - Pathology#Subcutaneous abscesses|subcutaneous abscesses]] due to cat bites.
==Type A==
Type A is a commensal in the upper respiratory tract of animals in the UK. It is a primary pathogen in avian cholera - a septicaemia in chickens and turkeys. It is a secondary pathogen commomly repsonsible for dog and cat bite wound infections in humans and animals. It is also involved in feline pyothorax and [[Muscles Inflammatory - Pathology#Abscesses|cellulitis]].
[[Category:Cattle]][[Category:Pig]][[Category:Poultry]][[Category:Rabbit]]
Some strains are involved in [[Nasal Cavity Inflammatory - Pathology#Bacterial rhinitis|Atrophic rhinitis of pigs]], and produce osteolytic toxin. It is also involved in [[Snuffles]], a mucopurulent rhinosinitis and can cause pneumonia and mastitis in sheep. In cattle it is associated with [[Respiratory Bacterial Infections - Pathology#Pneumonic pasteurellosis|pneumonic pasteurellosis]], as well as enzootic pneumonia in calves.
[[Category:To_Do_-_Bacteria]]
==Type B==
Type B causes Haemorrhagic Septicaemia of cattle in Southern Europe and Asia.
==Type D==
Type D is a primary and secondary pathogen. It causes [[Respiratory Bacterial Infections - Pathology#In Pigs|atrophic rhinitis]] along with ''[[Bordetella bronchiseptica]]'' in pigs. ''Pasteurella multocida'' adhere to epithelium damaged by ''[[Bordetella bronchiseptica]]'' and produce an osteolytic toxin (Pmt), which stimulates osteoclasts, inducing bone resorption of the nasal turbinates.
==Type E==
Type E causes African Bovine Haemorrhagic Septicaemia[[Category:Pasteurella and Mannheimia species]].
[[Category:To_Do_-_AimeeHicks]]