If the person shows the production of interferons in his body, chances are that he is suffering from

Options

A. Anthrax
B. Malaria
C. Measles
D. Tetanus

Explanation

**Step-by-Step Solution:**

1. **Understanding Interferons**: Interferons are proteins produced by cells in response to viral infections. They play a crucial role in the immune response by inhibiting viral replication and activating immune cells.

2. **Identifying the Options**: The question provides four options: anthrax, malaria, measles, and tetanus. We need to determine which of these diseases is associated with the production of interferons.

3. **Analyzing Each Option**:
- **Anthrax**: Caused by the bacterium Bacillus anthracis. Since it is a bacterial infection, it does not typically lead to the production of interferons.
- **Malaria**: A parasitic infection caused by Plasmodium species. Like anthrax, it does not involve the production of interferons.
- **Measles**: A viral infection caused by the measles virus (also known as rubella virus). This disease is known to trigger the production of interferons as part of the immune response.
- **Tetanus**: Caused by the bacterium Clostridium tetani. Similar to anthrax, it does not lead to the production of interferons.

4. **Conclusion**: Given that interferons are produced in response to viral infections, the correct answer is **measles**.

**Final Answer**: Measles

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