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Question

Which of the following causes kala-azar?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
Protozoa

Kala-azar Cause Identification

Kala-azar, also known as visceral leishmaniasis, is a serious disease affecting internal organs. Understanding the causative agent is crucial for diagnosis and treatment.

Disease Causative Agent

The disease kala-azar is caused by protozoa from the genus Leishmania. These are single-celled eukaryotic organisms.

  • Fungi: These are distinct eukaryotic organisms like yeasts and molds, not responsible for kala-azar.
  • Virus: Viruses are non-cellular infectious agents that cause diseases like influenza or COVID-19, not kala-azar.
  • Bacteria: Bacteria are prokaryotic microorganisms responsible for infections like strep throat or tuberculosis, but not kala-azar.
  • Protozoa: This group includes single-celled organisms like Leishmania, which are the direct cause of kala-azar.

Therefore, protozoa are the agents responsible for causing kala-azar.

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