Find the Incorrect match between disease and its vector.

Options

A. Disease -Bubonic plague ,Vector- Xenopsylla
B. Disease- Dengue , Vector-Anopheles
C. Disease-Chikungunya , Vector- Aedes
D. Disease-Filariasis ,Vector- Culex

Answer

To solve the question of finding the incorrect match between disease and its vector, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understanding Vectors**:
- A vector is an organism that carries and transmits a disease-causing agent (like bacteria or viruses) to another organism. It is important to differentiate between the disease and its vector.

2. **Analyzing the First Option**:
- **Disease**: Bubonic plague
- **Vector**: Xenopsylla (the rat flea)
- **Analysis**: Bubonic plague is caused by the bacterium Yersinia pestis, and its vector, the Xenopsylla flea, is known to transmit this disease.
- **Conclusion**: This option is correctly matched.

3. **Analyzing the Second Option**:
- **Disease**: Dengue
- **Vector**: Anopheles
- **Analysis**: Dengue fever is caused by the dengue virus, and its correct vector is the Aedes mosquito, not Anopheles. Anopheles is the vector for malaria.
- **Conclusion**: This option is incorrectly matched.

4. **Analyzing the Third Option**:
- **Disease**: Chikungunya
- **Vector**: Aedes mosquito
- **Analysis**: Chikungunya is caused by the chikungunya virus, and the Aedes mosquito is indeed the correct vector for this disease.
- **Conclusion**: This option is correctly matched.

5. **Analyzing the Fourth Option**:
- **Disease**: Filariasis
- **Vector**: Culex
- **Analysis**: Filariasis is caused by parasitic worms, and the Culex mosquito is a known vector for this disease.
- **Conclusion**: This option is correctly matched.

### Final Conclusion:
The only incorrect match is the second option: **Dengue and its vector Anopheles**. The correct vector for dengue is the **Aedes mosquito**.

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