| Line 59: |
Line 59: |
| | [[Cowdria ruminantium]] | | [[Cowdria ruminantium]] |
| | | | |
| − | ===Bovine anaplasmosis===
| + | [[Anaplasma marginale]] |
| − | | |
| − | *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
| |
| | | | |
| | | | |