- View more resources from this publisherWellcome Trust
Immune System
The immune system is what keeps us healthy in spite of the many organisms and substances that can do us harm. Explore how our bodies are designed to prevent potentially harmful objects from getting inside, and what happens when bacteria, viruses, fungi or other foreign organisms or substances breach these barriers.
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Immunity and vaccination
How is a vaccine developed, what is in it and how does it work? |
Invasion and infection
Why do we need an immune system and what protection does it give us? |
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