What is Antigen?
- A foreign substance irritating to the body (Greenberg, 2008)
- A foreign body (e.g., virus or bacteria) or an internal threat (e.g., a tumor) that can trigger an immune response (Butcher, Mineka & Hooley, 2004)
Frequently Asked Questions
- What are the commonly identified antigens?
- How do they trigger reaction from the immune system?