Difference between revisions of "Anaplasma marginale"
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− | + | ===Bovine anaplasmosis=== | |
+ | |||
+ | *Disease of cattle in tropical and sub-tropical regions caused by ''Anaplasma marginale'' | ||
+ | *Carrier status in endemic regions with clinical disease occuring in times of stress | ||
+ | *High mortality rate in naive adult cattle | ||
+ | *Morulae localise inside red blood cells close to the cell membrane | ||
+ | *Transmitted via the ''Boophilus'' tick as well as flies and contaminated instruments | ||
+ | |||
+ | *Clinical signs | ||
+ | **Inculbation period 2-12 weeks | ||
+ | **Anorexia, fever, depression, reduced milk yield, weight loss | ||
+ | **Anaemia and icterus | ||
+ | **Sudden death from hypoxia can occur | ||
+ | |||
+ | *Diagnosis | ||
+ | **Clinical signs and haematology suggestive | ||
+ | **Organisms present in erythrocytes of Giemsa-stained blood smears | ||
+ | **Immunofluorescence of blood smears, PCR, serology | ||
+ | |||
+ | *Treatment and control | ||
+ | **Long-acting oxytetracycline or imidocarb early in the disease | ||
+ | **Supportive therapy | ||
+ | **Vaccination of animals being introduced into an endemic region | ||
+ | [[Category:Rickettsiales]][[Category:Cattle Bacteria]] | ||
+ | [[Category:To_Do_-_Bacteria]][[Category:To Do - Clinical]] |
Revision as of 16:01, 17 January 2011
Bovine anaplasmosis
- Disease of cattle in tropical and sub-tropical regions caused by Anaplasma marginale
- Carrier status in endemic regions with clinical disease occuring in times of stress
- High mortality rate in naive adult cattle
- Morulae localise inside red blood cells close to the cell membrane
- Transmitted via the Boophilus tick as well as flies and contaminated instruments
- Clinical signs
- Inculbation period 2-12 weeks
- Anorexia, fever, depression, reduced milk yield, weight loss
- Anaemia and icterus
- Sudden death from hypoxia can occur
- Diagnosis
- Clinical signs and haematology suggestive
- Organisms present in erythrocytes of Giemsa-stained blood smears
- Immunofluorescence of blood smears, PCR, serology
- Treatment and control
- Long-acting oxytetracycline or imidocarb early in the disease
- Supportive therapy
- Vaccination of animals being introduced into an endemic region