Contents Part I Evolution of Allergy 1 The Allergy Epidemic: A Look into the Future .................................... 3 U. Wahn 2 Is the Prevalence of Allergy Continuously Increasing? ........................ 17 Carlos E. Baena-Cagnani, R. Maximiliano Gomez, and R.M. Gomez 3 Allergy: A Burden for the Patient and for the Society ......................... 33 Erkka Valovirta Part II Epigenetics and Phenotypes 4 The Epidemiology of Asthma and Allergic...