Countries participating in the Programme for Integrated Tick and Tickborne Disease Control in Eastern, Central and Southern Africa 

East Coast Fever: a definition

East Coast Fever (ECF) is a lethal disease of cattle caused by the blood parasite Theileria parva and transmitted by the Brown Ear Tick (Rhipicephalus appendiculatus). The parasite multiplies in the tick's salivary glands and the disease is introduced into the animal through the tick's saliva. Once inside the animal the Theileria parasites invade the lymphatic system, where they multiply and interfere with the animal's immunity, making it sick and often causing its death. East Coast Fever is a major constraint to cattle improvement in sub-Saharan Africa.

Other resources:

27 June 1997




Cow receiving an antibiotic as part of the immunization procedure against East Coast Fever



Heavy infestation with Brown Ear Tick (Rhipicephalus appendiculatus). The ticks, having taken all available space on the animal's ears (its preferred site), have attached themselves around the eyes.


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