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Defence against disease


What causes disease
What the body does to catch a disease
How we can artificially protect the body from a disease it may catch in the future
Medicines and antibiotics

A microorganism ­ a group of living things (bacteria, viruses and fungi)

How do…

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How can we protect the body from a future infection?

Many people have vaccinations as a child, then you have more as you grow up against many
viruses or bacteria. In the vaccine there is a version/copy of a pathogen that are very harmful,
the pathogens are dead but it…

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change in the DNA which affects the genes. This is passed onto all other bacterium that is
produced by this one! This means they are all resistant, if you take the same antibiotic then it
will not work! What will happen now is, the bacterium has developed resistance to an…


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