Difference between revisions of "Ehrlichia phagocytophila"
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(Redirected page to Tick-Borne Fever) |
(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, …') |
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| − | + | ===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 - WikiBlood|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 | ||
| + | [[Category:Rickettsiales]][[Category:Cattle]][[Category:Sheep]][[Category:Goat]] | ||
Revision as of 20:29, 14 May 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