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===Potomac horse fever===
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[[Ehrlichia risticii]]
 
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*Caused by ''Ehrlichia risticii''
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*Occurs during the summer
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*Fluke vector
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*Infects epithelial cells of colon and [[Monocytes - WikiBlood]], macrophages and mast cells
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*Clinical signs
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**Fever, anorexia, depression, diarrhoea, colic, leukopenia, laminitis
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*30% mortality
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*Can cause abortion
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*Hyperaemia of large intestine at post mortem
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*Diagnosis
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**Seroconversion detected by indirect immunofluorescence or ELISA
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*Treatment and control
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**Oxytetracycline for 1 week
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**Inactivated vaccines
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===Equine granulocytic ehrlichiosis===
 
===Equine granulocytic ehrlichiosis===
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