Sleeping sickness is caused by...........which spreads through the bite of......

Options :
  1. Typanosoma cruzi.......... Reduciid bug
  2. Trypanosoma suis...... Tsetse fly
  3. Trypanosoma brucei.......Tsetse fly
  4. Typanosoma congolense......Sandfly
Answer and Explanation :-

Answer: Option 3

Explanation:

Sleeping sickness which is also known as African typanosomiasis is caused by Trypanosoma brucei. The insect vector for T. brucei is Tsetse fly. The parasite lives in the midgut of the fly (procyclic form), whereupon it migrates to the salivary glands for injection to the mammalian host on biting.

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