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    Biology A-Level

    Herd immunity and epidemic prevention

    What Herd immunity and epidemic prevention means in Biology A-Level, as defined for OCR.

    Definition of Herd immunity and epidemic prevention

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    Reference: OCR

    High uptake reduces the number of susceptible hosts so the pathogen cannot spread easily, which can prevent epidemics and protect people who cannot be vaccinated.
    OCR · Communicable diseases, disease prevention and the immune system (study guide)

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