A student in the classroom has tested positive for COVID and has been asked to quarantine for two weeks. The student tested positive again for the same virus three months after returning to school.

Explain in a 300-words how his innate and adaptive immune response reacted at the first encounter with the virus. Make sure to include all cells, tissue, and cytokines …  that you learned in this chapter. Then explain how the body responds differently to 2nd encounter of the same virus.

Hint: think about memory cells.