Trypanosoma is a blood protozoan transmitted by bite of tsetse fly (Glossina sp.). African sleeping sickness is caused by 2 organisms -
(i) Trypanosoma brucei gambiense (causes chronic debilitating disease) and
(ii) Trypanosoma brucei rhodesiense (produces more acute disease).
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Concepts Used:
Human Health and Disease
Health is described as a state of complete physical, mental and social well-being.
The disease is a circumstance where malfunctioning of the body organs occurs leading to uneasiness and discomfort.
Differences between Infectious Diseases and Non-Infectious Diseases: