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→Diagnosis
==Diagnosis==
==Diagnosis==
Development of the typical diamond shaped lesion on the skin is pathognomic for this disease. Erysipelas should be considered in any cases where '''fever and lameness occur together''', or in '''pregnant sows struggling to farrow in combination with a fever'''.
Development of the typical diamond shaped lesion on the skin is pathognomic for this disease. Erysipelas should be considered in any cases where fever and lameness occur together, or in pregnant sows struggling to farrow in combination with a fever.
===Clinical signs===
===Clinical signs===
Clinical outcome depends on susceptibility of pigs and virulence of the strain. Pigs are susceptible after maternal antibody has waned (after 3 months) and before protective immunity acquired (3 years).
Clinical outcome depends on the susceptibility of pigs and virulence of the strain of erysipelas. Pigs are susceptible after maternal antibody has waned (after 3 months) and before protective immunity is acquired (3 years).
Changes in diet, extremes of temperature and fatigue are thought to predispose to infection.
Changes in diet, extremes of temperature and fatigue are thought to predispose to infection.
3 forms of disease occur:
3 forms of disease occur: Hyperacute, Acute and Chronic.
Hyperacute:
Hyperacute: