A bacterial disease produced by droplet infection is

Options

A. Cholera
B. Bacterial diarrhoea
C. Leprosy
D. Tuberculosis

Answer

To solve the question "A bacterial disease produced by droplet infection is," we need to analyze the options provided:

1. **Cholera**: This disease is primarily transmitted through contaminated food and water, not through droplet infection. Therefore, it is not the correct answer.

2. **Bacterial Diarrhea**: Similar to cholera, bacterial diarrhea is also transmitted through contaminated food and water. It does not spread via droplet infection, so this is not the correct answer either.

3. **Leprosy**: This disease is caused by the bacterium Mycobacterium leprae and is primarily transmitted through prolonged contact with an infected person. It is not spread through droplet infection, making this option incorrect.

4. **Tuberculosis**: This is a bacterial infection caused by Mycobacterium tuberculosis. It primarily affects the lungs and can be spread through droplet infection when an infected person coughs, sneezes, or talks, releasing droplets into the air that can be inhaled by others.

Based on the analysis, the correct answer is **D. Tuberculosis**.

### Step-by-Step Solution:
1. **Identify the nature of the question**: The question asks for a bacterial disease that is spread through droplet infection.
2. **Evaluate each option**:
- **Cholera**: Not spread by droplet infection.
- **Bacterial Diarrhea**: Not spread by droplet infection.
- **Leprosy**: Not spread by droplet infection.
- **Tuberculosis**: Spread by droplet infection.
3. **Select the correct answer**: Based on the evaluation, the correct answer is **D. Tuberculosis**.