Line 59: |
Line 59: |
| [[Cowdria ruminantium]] | | [[Cowdria ruminantium]] |
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− | ===Bovine anaplasmosis===
| + | [[Anaplasma marginale]] |
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− | *Disease of cattle in tropical and sub-tropical regions caused by ''Anaplasma marginale''
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− | *Carrier status in endemic regions with clinical disease occuring in times of stress
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− | *High mortality rate in naive adult cattle
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− | *Morulae localise inside red blood cells close to the cell membrane
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− | *Transmitted via the ''Boophilus'' tick as well as flies and contaminated instruments
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− | *Clinical signs
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− | **Inculbation period 2-12 weeks
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− | **Anorexia, fever, depression, reduced milk yield, weight loss
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− | **Anaemia and icterus
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− | **Sudden death from hypoxia can occur
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− | *Diagnosis
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− | **Clinical signs and haematology suggestive
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− | **Organisms present in erythrocytes of Giemsa-stained blood smears
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− | **Immunofluorescence of blood smears, PCR, serology
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− | | |
− | *Treatment and control
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− | **Long-acting oxytetracycline or imidocarb early in the disease
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− | **Supportive therapy
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− | **Vaccination of animals being introduced into an endemic region
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