Difference between revisions of "Corynebacterium pseudotuberculosis"
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(Created page with '*Caseous lymphadenitis: **''C. pseudotuberculosis'' carried on skin of sheep **Non-nitrate-reducing biotype **Infection follows tissue trauma such as shearing wounds **Incubation…') |
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| − | + | *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]] | |
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Revision as of 12:33, 12 May 2010
- 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 myositis
- Involved in deep pyoderma