Read the following text and answer the following question on the basis of the same:
Health is defined as a state of complete physical, mental and social well being. Balanced diet, personal hygiene and regular exercise are very important to maintain good health. Any disturbance of structure or function of the body may be regarded as disease. Diseases can broadly be categorized into infectious (communicable) and non-infectious (non-communicable). A wide range of organisms belonging to bacteria, viruses, fungi, protozoans etc. could cause diseases in man.
DPT vaccine is used for the immunization of:

Options

A. Cholera
B. Bubonic plague
C. Typhoid fever
D. Whooping cough.

Explanation

To answer the question regarding the DPT vaccine, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Components of the DPT Vaccine**:
- The DPT vaccine stands for Diphtheria, Pertussis (whooping cough), and Tetanus. Each component protects against a specific disease.

2. **Identify the Diseases Covered by the DPT Vaccine**:
- Diphtheria: A serious bacterial infection affecting the mucous membranes of the throat and nose.
- Pertussis: Also known as whooping cough, it is a highly contagious respiratory disease caused by the bacterium Bordetella pertussis.
- Tetanus: A bacterial disease that affects the nervous system, often caused by bacteria entering the body through wounds.

3. **Analyze the Question Options**:
- The question provides options: cholera, bubonic plague, typhoid fever, and whooping cough.
- We need to determine which of these diseases is included in the DPT vaccine.

4. **Match the Options with the DPT Components**:
- Cholera: Not covered by DPT.
- Bubonic plague: Not covered by DPT.
- Typhoid fever: Not covered by DPT.
- Whooping cough: This corresponds to Pertussis, which is one of the components of the DPT vaccine.

5. **Select the Correct Answer**:
- Based on the analysis, the correct answer is whooping cough, as it is directly related to the Pertussis component of the DPT vaccine.

### Final Answer:
The DPT vaccine is used for the immunization against **whooping cough** (Pertussis).

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