When a quick imune response is required due to infection of a deadly microbe, the patient is injected with

Options

A. Protein of pathogen
B. Inactivated or weakened pathogen
C. Preformed antibodies
D. Vaccine

Answer

**Step-by-Step Solution:**

1. **Understanding the Need for a Quick Immune Response:**
- When a patient is infected with a deadly microbe, the body requires an immediate immune response to combat the infection effectively.

2. **Evaluating the Options:**
- The options provided include:
- A) Protein of pathogen
- B) Inactivated or vaccine pathogen
- C) Preformed antibodies
- D) Vaccines

3. **Analyzing Each Option:**
- **A) Protein of Pathogen:**
- Introducing proteins from the pathogen would require the immune system to recognize and respond to these proteins, which would take time. This option is not suitable for an immediate response.

- **B) Inactivated or Vaccine Pathogen:**
- Vaccines are designed to generate an immune response over time, not for immediate action. They prepare the immune system for future encounters with the pathogen but are not effective in treating an active infection. Thus, this option is incorrect.

- **C) Preformed Antibodies:**
- Preformed antibodies are antibodies that have already been produced against a specific pathogen. When injected, they can quickly neutralize the pathogen, providing an immediate immune response. This is particularly useful in emergencies, such as tetanus or snake bites.

- **D) Vaccines:**
- Vaccines are intended to stimulate the immune system to develop memory against pathogens for future protection, not for immediate treatment of an existing infection. Therefore, this option is also incorrect.

4. **Conclusion:**
- The most appropriate option for providing a quick immune response in the case of a deadly microbe infection is **C) Preformed Antibodies**.

**Final Answer:** C) Preformed Antibodies

---