Which of the following diseases is caused by a protozoa parasite of Leishmania species?

  1. Polio
  2. Malaria
  3. Chikungunya
  4. Kala Azar


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  1. The correct answer is Kala Azar.

    Key Points

    • Kala Azardisease is caused by a protozoa parasite of theLeishmania species.
    • Leishmania donovani is a parasitic protozoan belonging to the class Mastigophora or flagellata.
      • It is a human parasite that is dimorphic (i.e. shows two forms) & digenetic in nature
      • It causes the disease Kala-azar or Dumdum fever by sand fly (phelobotomus). 
      • Cutaneous Leishmaniasis – Skin ulcers.
      • Mucocutaneous Leishmaniasis – Ulcers in mouth, throat, and nose, Nosebleed, Difficulty in breathing.
      • Visceral Leishmaniasis – Weakness, weight loss, loss of appetite, enlarged spleen, liver, lymph nodes, and a decrease in the production of blood cells.

    Additional Information

    •  Diagram showing the two different forms of Leishmania donovani: 

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