This GCSE Biology quiz explores how vaccination protects the body, using weakened or dead pathogens to train the immune system before a real infection happens.
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You can find more about this topic by visiting BBC Bitesize - Treating, curing and preventing disease
This is just one of the ways in which vaccines are made
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Antigens that are not attached to their pathogen pose no risk to the body, however, they will provoke your immune system to produce the correct antibodies to deal with them thus creating immunity
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This is the scientific name for red blood cells
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This is the part of the pathogen that triggers your immune system's response
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Pathogens are usually microorganisms and viruses
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Vaccination only works because these cells exist
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It is important for your immune system to destroy the pathogen before it can reproduce faster than your white cells can destroy it or make it harmless
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You have a natural immunity to many infections
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This is possible because most cases of cervical cancer are caused by a pathogen called the human papilloma virus (HPV), rather than a genetic problem or environmental causes
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Allergy is the most common reason for side effects after a vaccine. It can be very serious and lead to anaphylactic shock
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