Break bone fever is

Options

A. typhoid
B. viral encephalitis
C. kala-azar
D. dengue

Answer

**Step-by-Step Solution:**

1. **Understanding the Term "Break Bone Fever":**
- Break bone fever is a colloquial term used to describe a specific illness characterized by severe pain in the bones and joints.

2. **Identifying the Disease:**
- The condition referred to as break bone fever is actually Dengue fever. This is a viral infection transmitted by mosquitoes.

3. **Transmission:**
- Dengue fever is primarily transmitted by the Aedes mosquito, particularly Aedes aegypti. These mosquitoes thrive in urban areas and are often found in stagnant water.

4. **Environmental Conditions:**
- The presence of stagnant water is a significant factor in the breeding of Aedes mosquitoes. Areas with water logging are more prone to outbreaks of Dengue fever.

5. **Conclusion:**
- Based on the information, break bone fever is synonymous with Dengue fever, which is caused by the Aedes mosquito and is prevalent in areas with stagnant water.

6. **Final Answer:**
- Therefore, the correct answer to the question "Break bone fever is" is **Dengue fever**.

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