What are interferons? How do they help in controlling the disease?

Explanation

**Step-by-Step Solution:**

1. **Definition of Interferons:**
Interferons are a group of signaling proteins that are produced and released by host cells in response to the presence of pathogens, such as viruses, bacteria, or other foreign substances. They are part of the immune response.

2. **Production of Interferons:**
When a cell becomes infected by a virus, it recognizes the viral presence and begins to produce interferons. This production is a crucial part of the body's defense mechanism against viral infections.

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