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    • Image of Killer T cells (or cytotoxic T cells).
    Rights: Science Online, BSIP Lecaque/Science Photo Library Published 17 July 2018 Size: 15 MB Referencing Hub media

    Killer T cells (or cytotoxic T cells) destroy pathogen-infected cells by shooting an enzyme into them. This makes the cell break into small pieces that can be eaten by nearby macrophages.

    Acknowledgement: Science Online, BSIP Lecaque/Science Photo Library

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      INTERACTIVE

      The immune system

      This interactive explains the different cells, microorganisms and molecules involved in the human immune system.

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