Allergic Disease Epidemiology -- The Pathogenesis of Allergy: A Brief Introduction -- Genetics and Epigenetic Regulation in Allergic Diseases -- Cross-Reactivity -- From Allergen Extracts to Allergen Genes and Allergen Molecules -- Allergen Gene Cloning -- High Throughput Screening of Allergy -- Surrogate Markers for Allergen-Specific Immunotherapy -- Immune Responses to Allergens in Atopic Disease: Considerations for Bioinformatics -- Antigenicity, Immunogenicity and Allergenicity -- Bioinformatic Classifiers for Allergen Sequence Discrimination -- Strategies for the Modification and Evaluation of Allergenicity -- Bioinformatics Methods to Predict Allergen Epitopes -- Allergen Database.