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    Biology GCSE

    Pathogens as triggers of indirect health effects

    What Pathogens as triggers of indirect health effects means in Biology GCSE, as defined for AQA.

    Definition of Pathogens as triggers of indirect health effects

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    A pathogen is the initial trigger, while the cancer or allergy that follows is a consequence, so the causal sequence must be stated clearly.
    AQA · Health issues (study guide)

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