Q.

Kalaazar is transmitted by –

A. tsetse fly
B. housefly
C. anopheles mosquito
D. sand fly
Answer» D. sand fly
Explanation: Kala-azar is a chronic and potentially fatal parasitic disease of the viscera (the internal organs, particularly the liver, spleen, bone marrow and lymph nodes) which is transmitted by sand fly bites in parts of Asia (primarily India), Africa (primarily Sudan) and South America. It is transmitted by the bite of female sandflies.
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