Casaual organisms of sleeping sickness and kala-azar belong to which of thefollowing groups of protozoan protists?

Options

A. Amoeboid protozoans
B. Flagellated protozoans
C. Ciliated protozoans
D. Sporozoans

Answer

B

Explanation

Trypanosoma gambiense, causes Gambian sleeping sickness. The parasite is transmitted by blood sucking tse-tse fly, Glossina palpalis. Leishmania donovani causes kala-azar or dum-dum fever (= visceral leishmaniasis). The parasite is transmitted by sandfly, Phlebotomus argentipes and other spcies. Causal organisms of both diseases belong to falgellated protozoans of Kingdom Protista.