From peanuts and pollen to cats and dust mites, allergy rates are soaring dramatically all over the globe, with inoffensive substances triggering life-threatening physical responses. Experts are predicting that by 2050, one in two will suffer from an allergy. Why are our immune systems overreacting in this way? To stem the tide of the epidemic, scientists are investigating the interface between genetics, environmental factors and our modern lifestyle, and developing revolutionary new approaches to prevention and treatment.
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