1、WAOWhiteBookonAllergy2011-2012Asteadyincreaseintheprevalenceofallergicdiseasesgloballyhasoccurredwithabout30-40%oftheworldpopulationnowbeingaffectedbyoneormoreallergicconditionsTypesofallergiesAllergenAny substanceoften a protein that induces anallergyCommonallergens过敏原种类很多“除了水、葡萄糖和盐之外都可以