What are the differences between primary and secondary line of defense?

Part 1

What are the differences between primary and secondary line of defense? What factors interfere with these mechanisms? How are these levels of immunity affected in a child, an elderly person, or a person with a chronic disease? Include active, passive, innate, and acquired immunity.

Part 2

Choose an inflammatory or infectious process and explain the pathophysiology changes that may occur. What patient education would need to be included related to this disorder? Choose a medical condition different from that of your fellow students. 400 words