9. What are pathogens and how do they cause disease?
11. How does your body stop pathogens getting in?
12. How do white blood cells protect us from disease?
19. How does your immune system work?
20. How does vaccination protect you against disease?
This video looks at what pathogens are, how the immune system works and how vaccination helps prevent disease.
This video relates to GCSE science or AQA GCSE science. A short video to help with AQA core science GCSE, infectious diseases.