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    Three questions

    What is an antigen?


    Outline two ways by which active immunity can be achieved


    What is passive immunity?
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    Three questions

    What is an antigen?
    A molecule attached to something such as a bacteria which identifies the molecule as self or non-self so it can be delt with by the immune system

    Outline two ways by which active immunity can be achieved
    By contracting the disease or through vaccination. It involves The production of antibodies against a specific antigen by the immune system


    What is passive immunity?[/QUOTE]Immunity acquired from the transfer of antibodies from another individualfor example via vaccination or the placenta during birth
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    (Original post by Daveo)
    Three questions

    What is an antigen?
    A molecule attached to something such as a bacteria which identifies the molecule as self or non-self so it can be delt with by the immune system

    Outline two ways by which active immunity can be achieved
    By contracting the disease or through vaccination. It involves The production of antibodies against a specific antigen by the immune system


    What is passive immunity?
    Immunity acquired from the transfer of antibodies from another individualfor example via vaccination or the placenta during birth[/QUOTE]


    So vaccination causes both active AND passive immunity?
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    (Original post by Ralfskini)
    Immunity acquired from the transfer of antibodies from another individualfor example via vaccination or the placenta during birth
    So vaccination causes both active AND passive immunity?[/QUOTE]Yes, you can be injected with antibodies, this is known as passive immunity.
    At least I think so anyway.
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    (Original post by Daveo)
    So vaccination causes both active AND passive immunity?
    Yes, you can be injected with antibodies, this is known as passive immunity.
    At least I think so anyway.[/QUOTE]


    Thanks.
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    (Original post by Daveo)
    So vaccination causes both active AND passive immunity?
    Yes, you can be injected with antibodies, this is known as passive immunity.
    At least I think so anyway.[/QUOTE]
    I thought you got injected with a weak strain of the desease so that the body could make it's own antibodies...
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    (Original post by me!)
    Yes, you can be injected with antibodies, this is known as passive immunity.
    At least I think so anyway.

    I thought you got injected with a weak strain of the desease so that the body could make it's own antibodies...
    [/QUOTE]There are various methods where immunity is accuired from a vaccine not just the one you mentioned.
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    (Original post by Daveo)

    I thought you got injected with a weak strain of the desease so that the body could make it's own antibodies...
    There are various methods where immunity is accuired from a vaccine not just the one you mentioned.[/QUOTE]
    Ah ok thanks for clearing that up.

    (Original post by Daveo)
    So vaccination causes both active AND passive immunity?
    Yes, you can be injected with antibodies, this is known as passive immunity.
    At least I think so anyway.[/QUOTE]
    I don't think that's called vaccination, though? As it doesn't provoke an immune response from the body itself. I think it can be referred to as "passive immunisation" - it still gives you immunity - but not vaccination.

    Could be wrong though.

    Rosie
 
 
 

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