Difference between revisions of "Ehrlichia phagocytophila"
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(Created page with '===Tick-borne fever=== *Caused by ''E. phagocytophila'' *Affects ruminants in Europe *The tick ''Ixodes ricinis'' is the main vector *Animals remain carriers for up to 2 years, …') |
m (Text replace - 'Neutrophils - WikiBlood' to 'Neutrophils') |
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*Diagnosis | *Diagnosis | ||
| − | **Intracytoplasmic morulae in [[Neutrophils | + | **Intracytoplasmic morulae in [[Neutrophils|neutrophils]] of Giemsa-stained blood smears during acute phase |
**Seroconversion detected by immunofluorescence | **Seroconversion detected by immunofluorescence | ||
Revision as of 12:28, 12 June 2010
Tick-borne fever
- Caused by E. phagocytophila
- Affects ruminants in Europe
- The tick Ixodes ricinis is the main vector
- Animals remain carriers for up to 2 years, but are immune to reinfection
- Clinical signs
- Incubation period of 2 weeks; recovery in 2 weeks
- Fever, anorexia, reduced growth rates in young animals
- Reduced milk production, abortion, still birth
- Leukopenia and thrombocytopenia
- Causes immunosuppression in young lambs causing susceptibility to tick pyaemia and louping ill
- Diagnosis
- Intracytoplasmic morulae in neutrophils of Giemsa-stained blood smears during acute phase
- Seroconversion detected by immunofluorescence
- Treatment and control
- Oxtetracycline
- Tick control
- Prophylactic tetracyclines for lambs during first few weeks of life