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Protozoa: Kinetoplasta, Leishmania, and Tissue Flagellates

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Protozoa: Kinetoplasta, Leishmania, and Tissue Flagellates

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Questions and Answers

What system does Leishmania donovani primarily infect?

Reticuloendothelial system (correct)

Muscular system

Circulatory system

Nervous system

Which type of cells are responsible for removing immune complexes from the circulation in healthy individuals?

Phagocytic cells (correct)

Macrophages

Lymphocytes

Eosinophils

What is the primary reservoir of Leishmania donovani?

Other insects

Most mammals (correct)

Humans

Phlebotomus sand flies

What is the primary mechanism of transmission of Leishmania donovani?

Infected female sand fly bites Signup and view all the answers

What is the characteristic of Leishmania donovani that differentiates it from L. tropica?

Visceral infection Signup and view all the answers

What is the fate of amastigotes engulfed by neutrophils and eosinophils?

They are killed Signup and view all the answers

What is the role of macrophages in the life cycle of Leishmania donovani?

They engulf and do not kill the amastigotes Signup and view all the answers

What is the reason why Leishmania donovani can infect macrophages?

They possess a variety of cell surface molecules Signup and view all the answers

What is the name of the disease caused by Leishmania donovani?

Visceral Leishmaniasis Signup and view all the answers

What is the outcome of the disease in untreated cases?

The disease is fatal if left untreated Signup and view all the answers