B1 Biology - Immunity and Vaccination
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| Five barriers to stop pathogens entering your body. | Skin, tears, blood clotting, stomach acid, mucus
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| The system in your body that deals with disease? | Immune system
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| White blood cells that engulf pathogens | Phagocyte
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| Lymphocytes produce these. | Antibodies and antitoxins
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| Protein markers found on the surface of cells | Antigens
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| Chemicals produced by your body which attach to antigens | Antibodies
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| When pathogens are coated with antibodies, they are attacked by? | White blood cells
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| You have this when you can no longer catch a disease. | Immunity
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| The process where dead or changed pathogens are injected into your body. | Vaccination
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| This can make someone immune to a disease without ever having the disease. | Immunisation
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| Why do we need new flu vaccines every year? | The antigens on the virus change each year
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| The spread of a disease across a whole country | Epidemic
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| The spread of a disease across a whole continent | Pandemic
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