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| | [[Ehrlichia ondiri]] | | [[Ehrlichia ondiri]] |
| | | | |
| − | ===Tick-borne fever===
| + | [[Ehrlichia phagocytophila]] |
| − | | |
| − | *Caused by ''E. phagocytophila''
| |
| − | *Affects ruminants in Europe
| |
| − | *The tick ''Ixodes ricinis'' is the main vector
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| − | *Animals remain carriers for up to 2 years, but are immune to reinfection
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| − | | |
| − | *Clinical signs
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| − | **Incubation period of 2 weeks; recovery in 2 weeks
| |
| − | **Fever, anorexia, reduced growth rates in young animals
| |
| − | **Reduced milk production, abortion, still birth
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| − | **Leukopenia and thrombocytopenia
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| − | **Causes immunosuppression in young lambs causing susceptibility to tick pyaemia and louping ill
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| − | | |
| − | *Diagnosis
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| − | **Intracytoplasmic morulae in [[Neutrophils - WikiBlood|neutrophils]] of Giemsa-stained blood smears during acute phase
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| − | **Seroconversion detected by immunofluorescence
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| − | | |
| − | *Treatment and control
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| − | **Oxtetracycline
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| − | **Tick control
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| − | **Prophylactic tetracyclines for lambs during first few weeks of life
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| − | | |
| | | | |
| | ===Heartwater=== | | ===Heartwater=== |