Disease caused by the biting of Culex mosquito is

Options

A. Filariasis
B. Dengue fever
C. Yellow fever
D. Pneumonia

Answer

To solve the question regarding the disease caused by the biting of the Culex mosquito, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Culex Mosquito**:
- Culex is a genus of mosquitoes that are known to be vectors for several diseases. They are different from other mosquito genera like Aedes and Anopheles.

2. **List the Diseases Associated with Culex Mosquito**:
- Culex mosquitoes are known to transmit diseases such as filariasis and elephantiasis.

3. **Evaluate the Options Given**:
- a. Filariasis
- b. Dengue fever
- c. Yellow fever
- d. Pneumonia

4. **Analyze Each Option**:
- **Filariasis**: Caused by parasitic worms and transmitted by Culex mosquitoes.
- **Dengue fever**: Transmitted by Aedes mosquitoes, not Culex.
- **Yellow fever**: Caused by a virus and transmitted by Aedes mosquitoes, not Culex.
- **Pneumonia**: Caused by bacteria (like Haemophilus influenzae) and is not transmitted by mosquitoes.

5. **Select the Correct Answer**:
- Based on the analysis, the disease caused by the biting of the Culex mosquito is **Filariasis**.

### Final Answer:
The disease caused by the biting of Culex mosquito is **a. Filariasis**.

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