ATS comes under which type of Acquired immunity

Options

A. Natural Active Immunity
B. Artificial Active Immunity
C. Natural Passive Immunity
D. Artificial Passive Immunity

Answer

To determine which type of acquired immunity the Anti-Tetanus Serum (ATS) falls under, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Acquired Immunity**: Acquired immunity refers to the immunity that an individual gains after exposure to a pathogen or through vaccination. It can be classified into two main categories: active and passive immunity.

2. **Differentiate Between Active and Passive Immunity**:
- **Active Immunity**: This occurs when the body is exposed to a pathogen and produces its own antibodies. It can be natural (from an infection) or artificial (from a vaccine).
- **Passive Immunity**: This involves the transfer of antibodies from another source to an individual. It can also be natural (like antibodies passed from mother to child through breast milk) or artificial (like antibodies given through an injection).

3. **Identify the Type of ATS**: The Anti-Tetanus Serum (ATS) is derived from the blood of immunized animals and contains pre-formed antibodies against the tetanus toxin. This means that it provides immediate immunity without the body having to produce its own antibodies.

4. **Classify ATS**:
- Since ATS provides antibodies directly and is not produced by the recipient's immune system, it is classified as passive immunity.
- Furthermore, since ATS is administered through an injection and not naturally acquired, it is categorized as artificial passive immunity.

5. **Conclusion**: Therefore, ATS comes under the category of **Artificial Passive Immunity**.

### Final Answer:
ATS comes under **Artificial Passive Immunity**.

---