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Practical ethics and prenatal screening

Allergy explosion

Why our immune systems react to harmless substances

Ciara Gartshore discusses some of the theories behind what might be contributing to the increasing prevalence of allergies, and investigates whether changes in hygiene standards, lifestyle and the microorganisms that live on and within our bodies may be to blame

Ciara Gartshore

AQA Cell recognition and the immune system

Edexcel A Immunity, infection and forensics

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Practical ethics and prenatal screening

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