Kala-azar and Oriental Sore are spread by

Options

A. housefly
B. bed bug
C. sand fly
D. fruit fly

Explanation

To solve the question about the spread of Kala-azar and Oriental sore, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Diseases**:
- Kala-azar and Oriental sore are both forms of Leishmaniasis.

2. **Understand the Causative Agent**:
- Leishmaniasis is caused by a protozoan parasite known as Leishmania.

3. **Differentiate Between the Types**:
- Kala-azar is also known as visceral leishmaniasis, which is the severe form of the disease.
- Oriental sore refers to cutaneous leishmaniasis, which affects the skin.

4. **Determine the Vector**:
- Both Kala-azar and Oriental sore are transmitted by a specific vector.
- The vector responsible for spreading these diseases is the sandfly.

5. **Select the Correct Option**:
- Among the given options (housefly, bed bug, sandfly, fruit fly), the correct answer is sandfly.

### Final Answer:
Kala-azar and Oriental sore are spread by **sandfly**.

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