Process of weakening of pathogens is called

Options

A. Vaccination
B. Attenuation
C. Immunisation
D. Virulence reduction

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Question**: The question asks for the term that describes the process of weakening pathogens.

2. **Analyzing the Options**:
- **Vaccination**: This is a method of introducing a weakened or killed pathogen into the body to stimulate the immune system. However, it does not refer to the process of weakening the pathogen itself.
- **Attenuation**: This term specifically refers to the process by which pathogens are weakened so that they can no longer cause serious illness while still being able to stimulate an immune response. This is the correct answer.
- **Immunization**: This is the process of administering a vaccine to protect against disease. It is not the process of weakening pathogens.
- **Virulence Reduction**: This term refers to the decrease in the ability of a microorganism to cause disease. While related, it is synonymous with attenuation, but not the term that describes the process itself.

3. **Identifying the Correct Answer**: After analyzing all the options, the correct answer is **attenuation**, as it directly refers to the process of weakening pathogens.

4. **Conclusion**: The process of weakening of pathogens is called **attenuation**.

---