What are interferons?
A) Proteins activated by the presence of a pathogen
B) Chemicals released by virally-infected cells that encourage the production of anti-viral proteins
C) Chemicals that raise the body temperature
D) Chemicals released by damaged tissue to cause blood vessels to widen

Question

Quizplus · Accepted Answer

Interferons are chemicals released by virally-infected cells. They do not help the cell that produced them. Instead, interferons encourage surrounding healthy cells to make antiviral proteins so the virus will not invade them. Interferons also activate macrophages and NK cells to fight cancer cells.

What Are Interferons