InItroduction of attenuated pathogens in human body results in______________.

Options

A. Artificial acquired active immunity
B. Artificial acquired passive immunity
C. Natural acquired active immunity
D. Nature acquired passieve immunity

Answer

To solve the question regarding the introduction of attenuated pathogens in the human body, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Terms**:
- **Attenuated Pathogens**: These are live pathogens that have been weakened so that they cannot cause disease but can still provoke an immune response.
- **Immunity Types**: There are two main types of immunity: active and passive. Active immunity occurs when the body produces its own antibodies, while passive immunity involves the transfer of antibodies from another source.

2. **Identifying the Context**:
- The question specifically refers to the introduction of attenuated pathogens, which is a common method used in vaccination.

3. **Analyzing the Options**:
- **Option 1: Artificially acquired active immunity**: This occurs when a person is vaccinated with a weakened or attenuated form of a pathogen, leading to the production of antibodies.
- **Option 2: Artificially acquired passive immunity**: This involves the direct transfer of antibodies (e.g., through serum) and does not involve the immune system's response to a pathogen.
- **Option 3: Naturally acquired active immunity**: This occurs when a person is exposed to a pathogen in the environment and their immune system responds by producing antibodies.
- **Option 4: Naturally acquired passive immunity**: This is the transfer of antibodies from mother to child, typically through breast milk.

4. **Conclusion**:
- Since the introduction of attenuated pathogens via vaccination stimulates the immune system to produce its own antibodies, the correct answer is **Option 1: Artificially acquired active immunity**.

### Final Answer:
The introduction of attenuated pathogens in the human body results in **artificially acquired active immunity**.

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