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− | *Caseous lymphadenitis:
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− | **''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]] | + | {| cellpadding="10" cellspacing="0" border="1" |
− | [[Category:To_Do_-_Bacteria]] | + | | Also known as: |
| + | | ''C.pseudotuberculosis'' |
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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. |
| + | ''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]] |