This problem set introduces students to basic concepts about the immune system. Correct answers are reinforced with a brief explanation, and incorrect answers are linked to tutorials to help solve the problem.

The Ebola disease is a life-threatening illness caused by the Ebola virus. There is currently no vaccine or specific medication for Ebola. Further discussion includes How does the virus replication work?; What are the symptoms of Ebola...

A short tutorial illustrating the structure of the antibody, describing how the structure fosters its function.

Learn about some autoimmune disorders that affect human health.