What are interferons?

• A. Antimicrobial proteins that interfere with viral replication
• B. Hormones produced by the adrenal gland
• C. A type of white blood cell
• D. Enzymes involved in digestion

Answer: (A)

Interferons are a group of signaling proteins that play a crucial role in the immune response, particularly against viral infections. They are produced and released by cells in response to the presence of viruses and certain other pathogens. Once released, interferons bind to nearby cells, triggering antiviral defenses and enhancing their ability to combat the infection. This process effectively interferes with viral replication, thereby limiting the spread of the virus within the host organism.

The role of interferons in mediating the immune response underscores their importance in protecting the body against viral threats, making the identification of them as antimicrobial proteins that interfere with viral replication accurate.