Question

Which one of the following causes kala-azar?

• A. Ascaris
• B. Trypanosoma
• C. Leishmania
• D. Bacteria

Answer 1

The correct option is C

Leishmania

The correct option is C.

The explanation for the correct option:

1. Kala-azar is a disease caused by the bites of the female parasite Leishmania.
2. It is also called black fever because its infection leads to the darkening of the skin.
3. Its common symptoms are fever, anaemia, loss of weight, etc.

Explanation of incorrect options:

Option A:

1. Ascaris causes the deadly disease Ascariasis which leads to vomiting and stomach pain.
2. The main genus involved is Ascaris lumbricoides.

Option B:

1. Trypanosoma causes the disease of sleeping sickness.
2. It is widely caused by Trypanosoma brucei.

Option D:

1. Bacteria causes many disorders both in plants and animals. E.g.- Tuberculosis.
2. In plants, they cause citrus canker, fire blight of apple, etc.

Final answer: Leishmania causes Kala-aza