The Allergy Asthma & Immunology Society of Ontario is pleased to present ALLERGY UPDATE 2024. This is the 39th annual SPECIAL SYMPOSIUM FOR THE PRACTICING PHYSICIAN. Our objective is to continue to provide practical, topical, and up to date information related to the practice of allergy, asthma, and immunology. Information presented will result in a better understanding of basic and clinical allergy and will present strategies for the treatment of allergic and immunological diseases.