Difference between revisions of "Anaplasma marginale"

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**Supportive therapy
 
**Supportive therapy
 
**Vaccination of animals being introduced into an endemic region  
 
**Vaccination of animals being introduced into an endemic region  
[[Category:Rickettsiales]][[Category:Cattle]]
+
[[Category:Rickettsiales]][[Category:Cattle Parasites]]
 
[[Category:To_Do_-_Bacteria]]
 
[[Category:To_Do_-_Bacteria]]

Revision as of 18:07, 10 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