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*Caseous lymphadenitis:
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{{unfinished}}
**''C. pseudotuberculosis'' carried on skin of sheep
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**Non-nitrate-reducing biotype
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**Infection follows tissue trauma such as shearing wounds
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**Incubation period 3 months
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**Chronic suppurative infection of sheep, goats and occasionally cattle
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**Abscessation of superficial and internal lymph nodes if haemtogenous spread occurs
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**Caseous abscesses with green colour and onion ring appearance
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**Ill thrift and pneumonia may occur
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**Condemnation of carcasses and hides
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**Infection spread by pus from abscesses, and oculonasal secretions
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**Organism survives in environment for several months
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**Sandwich ELISA detects circulating antibodies to phospholipase toxin
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**Control: importation measures including screening; culling of infected sheep, stict hygiene; inactivated vaccine
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*Ulcerative lymphangitis:
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**Nitrate reducing biotype
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**Disease in horses and cattle
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**Infection through skin wounds
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**Lymphangitis of lower limbs or abscessation in pectoral region
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**Slow onset, usually becomes chronic
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**Affected lymphatic vessels swollen and firm with nodules
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**Oedema in affected limbs
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**Ulcerative nodules exude thick green pus
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**Lymphangitis and lymphadenitis in cattle with abscesses as well as coronary band lesions causing lameness
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**Antibiotic treatment and topical iodophore shampoo
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*May cause [[Muscles Inflammatory - Pathology#Abscesses|myositis]]
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*Involved in [[Bacterial skin infections - Pathology#Deep pyoderma|deep pyoderma]]
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[[Category:Corynebacterium species]][[Category:Sheep]][[Category:Horse]][[Category:Cattle]]
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{| cellpadding="10" cellspacing="0" border="1"
[[Category:To_Do_-_Bacteria]]
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| Also known as:
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| ''C.pseudotuberculosis''
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|-
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|}
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''Corynebacterium pseudotuberculosis'' is a species of the ''[[Corynebacterium species - Overview|Corynebacterium]]'' genus. It causes [[caseous lymphadenitis]] and is involved in [[Bacterial skin infections - Pathology#Deep pyoderma|deep pyoderma]].
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The organism survives in environment for several months and causes disease in horses and cattle.
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''C. pseudotuberculosis'' produces small, white colonies, surrounded by a narrow zone of complete haemolysis. The colonies become dry and cream-coloured. Certain strains of ''C. pseudotuberculosis'' reduce nitrates and an enhancement of haemolysis is produced by ''C. pseudotuberculosis'' when inoculated across a streak of ''Rhodococcus equi''.
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[[Category:Corynebacterium species]]
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[[Category:To_Do_-_AimeeHicks]]
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