What is a cytokine, and how is it produced?what is the role of cytokines in the infectious disease process?

Discuss cytokines by answering the following questions, using your textbook and peer-reviewed journal articles to support your statements.

What is a cytokine, and how is it produced?
What is the role of cytokines in the infectious disease process?
What aspect of cytokines do you find especially challenging or do not understand? Pose a question that your instructor or classmates can answer for you