Why is DPT called triple antigen?

Explanation

**Step-by-Step Solution:**

1. **Understanding Antigens**: An antigen is defined as any foreign particle, such as bacteria or viruses, that triggers an immune response in the body. When these antigens enter the body, the immune system recognizes them as threats and produces antibodies to fight against them.

2. **Role of Antibodies**: Antibodies are specialized proteins produced by the immune system. They play a crucial role in providing protection against diseases by identifying and neutralizing pathogens like bacteria and viruses.

3. **Introduction to DPT**: DPT is a vaccine that is designed to provide immunity against three specific diseases. The name "DPT" stands for the three diseases it protects against: Diphtheria, Pertussis, and Tetanus.

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