Six lessons cover this chapter. Open any of them on its own below, or meet it in place inside chapter 14 of the book. Tick a lesson off once you can predict what it will do before you touch it.
1
The Four Types of Hypersensitivity
Run each of the four types. Then race their four clocks side by side.
2
Sensitization, Re-exposure, Anaphylaxis
Step from first contact to a severe reaction. Set the dose and read the pressure.
3
When Self-Tolerance Breaks
Pick one of seven diseases. See which tissue is hit, and watch the damage.
4
Immunodeficiency
Compare the two kinds. Drag the HIV timeline and watch CD4 cells fall.
5
Who Can Donate to Whom
Tap any donor and recipient pair. Hang the unit and watch what happens.
6
Grafts and Rejection
Set the match and the drug dose. Then run the graft out ten years.