It’s virtually impossible to talk about death and disease in humans without coming across the immune system. Though discussion in the series ‘Killing your character convincingly‘ is so often about immune systems that don’t work, to understand why failure can be such a devastating factor we really need to understand what it is and know a little about how it works and why it fails.
What is the immune system?
The immune system is a network of cells, tissues, and organs that work together to protect the body.