Interferon suppresses the pathogenic activity of

Options

A. Bacteria
B. Viruses
C. Protozoans
D. Helminths

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks about the pathogenic activity that interferons suppress.

2. **Understand Interferons**: Interferons are signaling proteins produced by host cells in response to viral infections. They play a crucial role in the immune response.

3. **Analyze the Options**: The options provided are bacteria, viruses, protozoans, and helminths. We need to determine which of these pathogens interferons specifically target.

4. **Consider the Nature of Viruses**: Viruses are unique in that they can only replicate inside living cells by incorporating their RNA or DNA into the host cell. This is a critical point because interferons are produced in response to viral infections.

5. **Role of Interferons**: Interferons interfere with the replication of viruses by signaling neighboring cells to enhance their antiviral defenses, thus suppressing the activity of viruses.

6. **Conclusion**: Based on the information, interferons specifically suppress the pathogenic activity of viruses. Therefore, the correct answer is "viruses."

**Final Answer**: Interferon suppresses the pathogenic activity of **viruses**.

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