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Corynebacterium pseudotuberculosis (view source)
Revision as of 12:33, 12 May 2010
, 12:33, 12 May 2010Created page with '*Caseous lymphadenitis: **''C. pseudotuberculosis'' carried on skin of sheep **Non-nitrate-reducing biotype **Infection follows tissue trauma such as shearing wounds **Incubation…'
*Caseous lymphadenitis:
**''C. pseudotuberculosis'' carried on skin of sheep
**Non-nitrate-reducing biotype
**Infection follows tissue trauma such as shearing wounds
**Incubation period 3 months
**Chronic suppurative infection of sheep, goats and occasionally cattle
**Abscessation of superficial and internal lymph nodes if haemtogenous spread occurs
**Caseous abscesses with green colour and onion ring appearance
**Ill thrift and pneumonia may occur
**Condemnation of carcasses and hides
**Infection spread by pus from abscesses, and oculonasal secretions
**Organism survives in environment for several months
**Sandwich ELISA detects circulating antibodies to phospholipase toxin
**Control: importation measures including screening; culling of infected sheep, stict hygiene; inactivated vaccine
*Ulcerative lymphangitis:
**Nitrate reducing biotype
**Disease in horses and cattle
**Infection through skin wounds
**Lymphangitis of lower limbs or abscessation in pectoral region
**Slow onset, usually becomes chronic
**Affected lymphatic vessels swollen and firm with nodules
**Oedema in affected limbs
**Ulcerative nodules exude thick green pus
**Lymphangitis and lymphadenitis in cattle with abscesses as well as coronary band lesions causing lameness
**Antibiotic treatment and topical iodophore shampoo
*May cause [[Muscles Inflammatory - Pathology#Abscesses|myositis]]
*Involved in [[Bacterial skin infections - Pathology#Deep pyoderma|deep pyoderma]]
[[Category:Corynebacterium species]][[Category:Sheep]][[Category:Horse]][[Category:Cattle]]
**''C. pseudotuberculosis'' carried on skin of sheep
**Non-nitrate-reducing biotype
**Infection follows tissue trauma such as shearing wounds
**Incubation period 3 months
**Chronic suppurative infection of sheep, goats and occasionally cattle
**Abscessation of superficial and internal lymph nodes if haemtogenous spread occurs
**Caseous abscesses with green colour and onion ring appearance
**Ill thrift and pneumonia may occur
**Condemnation of carcasses and hides
**Infection spread by pus from abscesses, and oculonasal secretions
**Organism survives in environment for several months
**Sandwich ELISA detects circulating antibodies to phospholipase toxin
**Control: importation measures including screening; culling of infected sheep, stict hygiene; inactivated vaccine
*Ulcerative lymphangitis:
**Nitrate reducing biotype
**Disease in horses and cattle
**Infection through skin wounds
**Lymphangitis of lower limbs or abscessation in pectoral region
**Slow onset, usually becomes chronic
**Affected lymphatic vessels swollen and firm with nodules
**Oedema in affected limbs
**Ulcerative nodules exude thick green pus
**Lymphangitis and lymphadenitis in cattle with abscesses as well as coronary band lesions causing lameness
**Antibiotic treatment and topical iodophore shampoo
*May cause [[Muscles Inflammatory - Pathology#Abscesses|myositis]]
*Involved in [[Bacterial skin infections - Pathology#Deep pyoderma|deep pyoderma]]
[[Category:Corynebacterium species]][[Category:Sheep]][[Category:Horse]][[Category:Cattle]]