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Trypanosomiasis african Epidemiology 1
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Trypanosomiasis african Epidemiology 2
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Trypanosomiasis african Epidemiology 3
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Trypanosomiasis, african
Epidemiology
  • African trypanosomiasis – sleeping sickness – is confined to tropical Africa between latitudes 15ºN and 20ºS (the “tsetse belt”)
  • T.b. gambiense occurs in Saharan savannah and riverine forests of western and central Africa
  • T.b. rhodesiense occurs in the savannah of eastern and south-east Africa
  • The pathogen is transmitted by blood-sucking tsetse flies
  • Wild animals (antelopes, lions) are carriers of T. brucei rhodesiense
  • Domestic and wild animals are reservoirs for T. brucei gambiense
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