A vaccine is made of dead or inactivated form of a pathogen, that is put into your body, often by injection. It stimulates your body’s natural immune response to invading pathogens.

White blood cells into making antibodies.

What do the antigens in the vaccine stimulate?

Herd immunity is when a large proportion of the population is immune to a disease, the spread of the disease is very much reduced and the disease may even disappear.

An antigen is any substance that causes your immune system to produce antibodies against it.

Antibodies are proteins which can fight against specific pathogens.

Give an example of a bacterial disease you can be immunised against.

Give an example of a viral disease you can be immunised against.

What specific white blood cells ‘remember’ the riggt antibody needed to destroy a particular pathogen?

Antibodies join up with the antigens and inactivate or destroy that particular pathogen.

How do antibodies inactivate/destroy a particular pathogen?

Explain how the immune system of our body works?

Vaccines stimulates the white blood cells to make antibodies specific to a particular pathogen. These antibodies join up with the antigen and destroys/inactivate the pathogen. This can affect both bacteria cells and virus cells. 

Why can vaccines be used against both bacterial and viral diseases?

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B6 Preventing and treating disease (Leason 1)

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Biology

6.1 Vaccination

Learn how vaccinations prevent illness and boost your immune system. Find answers to B6 preventing and treating disease exam-style questions for GCSE Biology. Understand how the immune systems of animals respond to a vaccination, and explore AQA GCSE Biology vaccination questions. Discover what diseases are vaccinated against in autumn and winter, and how white blood cells recognize foreign antigens. Perfect for GCSE students!

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