Event on 16 October 2013. Allergy is a heightened response of the immune system to normally innocuous substances, such as pollen, dust mites, food or chemicals. It is estimated that one in four people in the UK has an allergy. The number of people with allergies is increasing and up to half those affected are children. Expert speakers discussed trends in the prevalence of allergic disease and the underlying causes, provision of clinical allergy services and commented on progress made since the House of Lords Science and Technology Committee’s report on the topic in 2007. POST was delighted to collaborate on this event with the All Party Parliamentary Group for Allergy.