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**Joint lesions with erosion of articular cartilage, fibrosis and ankylosis
**Joint lesions with erosion of articular cartilage, fibrosis and ankylosis
**Strong impact on productivity
**Strong impact on productivity
*Vegetative endocarditis:
*Chronic valvular endocarditis:
**Thrombus on mitral valves
**Vegetatic thrombosis of mitral valves
**Asymptomatic or congestive heart failure and sudden death with stress
**Asymptomatic or congestive heart failure and sudden death with stress
*Diagnosis:
*Diagnosis:
**Diamond-shaped skin lesions
**Haematology and post mortem, especially liver, spleen, heart valves, synovial tissues
**Slender Gram-positive rods on microscopy of acute lesions; filamentous forms in chronic lesions and smears
**No growth on MacConkey agar
**Colonial characteristics and biochemical tests
*Treatment:
**Penicillin and tetracyclines for acute infections
**Hyperimmune serum
*Control:
**Hygience
**Cull chronic cases
**Isolate affected pigs
**Live attenuated or inactivated vaccines
===Turkey erysipelas===
*Affects birds of all ages
*Excreted in semen, causing death of turkey hens 4-5 days after AI
*Septicaemia
*High mortality
*Dark, swollen snoods
*Enlarged friable liver and spleen on post mortem
*Arthritis and vegetative endocarditis and emaciation with chronic infections
*Inactivated vaccine
===Sheep infections===
*Non-suppurative polyarthritis of lambs from contamination of navel or tail-docking/castration wounds
*Cellulitis and laminitis in older lambs and ewes causing post-dipping lameness - entry through skin abrasions in hoof from contaminated dip
*Valvular endocarditis and pneumonia in ewes reported
===Human erysipeloid===
*Infection through skin wounds from fish and poultry
*Localised cellulitis
*Occasional joint and heart disease after haematogenous spread if untreated