Pathophysiology · Module 2 · Pathogens and immune disorders

Pathogens and Immune Disorders Walkthrough

How germs cause disease, and what happens when the immune system overreacts, attacks the body, rejects a transplant or is too weak. Go at your own pace. Nothing here is graded.

Speed

Think of it like this

Quick check

Wrong answers are fine here. Read why, then try again.

Dr. Akash Garg · Pathophysiology Study Tools · Diagrams are simplified and not to scale. For learning only, not medical advice. CC BY-NC-SA 4.0
Use the left and right arrow keys to move between steps. Practice next in the Immune Case Lab. Cells, germs and antibodies are drawn as large cartoons, and processes that take minutes to years are sped up so you can watch them. Numbers are rounded teaching values for adults; CD4 thresholds for each infection are approximate.