Haemoflagellates has two stages in its life cycle: A. the amastigote form, occurring in man and B. the promastigote form occurring in sand-fly. A. Life cycle in Man: (a) Infection: L. donovani is transmitted to man by the sand-fly, Phlebotomus argentipes. In case of this parasite sand-fly acts as vector. The insect vector which has […]
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