A Matter of Self Defence
Why do you usually recover from ' flu '? Why do you only catch measles once?
The reason is that your body has a defensive army constantly fighting off germs and even cancer. It's called the immune system. If it wins you stay alive; if it loses, you die.
This programme is about the recent fascinating discoveries which have begun to reveal just how we fight off disease. Narrator PAUL VAUGHAN
Film editor CHRISTOPHER WOOLLEY Editor BRUCE NORMAN
Producer MICHAEL ANDREWS