A) house fly
B) mosquito
C) honey bee
D) tse tse fly
Correct Answer: D
Solution :
Trypanosoma gambiense is most dreaded protozoan parasite of man. This causes famous 'sleeping sickness'. The vector host is tse-tse fly. Early symptoms of the disease are irregular fever and anaemia. The deadly sleeping sickness is caused only when, about three months after inoculation, the parasites leave the blood and invade cerebrospinal fluid and brain cells causing extensive damage to the central nervous system.
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