Which is a water-borne disease

Options

A. Cholera
B. Syphilis
C. Gonorrhoea
D. Filaria

Answer

**Step-by-Step Solution:**

1. **Understanding Waterborne Diseases**: Waterborne diseases are infections that are transmitted through contaminated water sources. They are typically caused by pathogens such as bacteria, viruses, or parasites that enter the water supply.

2. **Analyzing the Options**:
- **A. Cholera**: This disease is caused by the bacterium *Vibrio cholerae* and is primarily transmitted through contaminated drinking water and food. Therefore, it is classified as a waterborne disease.
- **B. Syphilis**: This is a sexually transmitted infection caused by the bacterium *Treponema pallidum*. It is not transmitted through water, so it is not a waterborne disease.
- **C. Gonorrhea**: Similar to syphilis, gonorrhea is also a sexually transmitted infection caused by the bacterium *Neisseria gonorrhoeae*. It is not related to waterborne transmission.
- **D. Filaria**: This disease is caused by parasitic worms and is transmitted through insect bites (specifically mosquitoes). It does not involve waterborne transmission.

3. **Conclusion**: Based on the analysis of the options, the only disease that is classified as a waterborne disease is **Cholera**.

4. **Final Answer**: The correct answer is **A. Cholera**.

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