Japan's part in the diagnosis and treatment of allergies

Today, and February 20th annually, is Allergy Day アレルギーの日. The Japan Allergy Association established the anniversary in 1995 to honor one of the most important breakthroughs in modern immunology: the discovery of Immunoglobulin E (IgE).

On February 20, 1966, immunologist Ishizaka Kimishige and his wife and research partner Ishizaka Teruko presented their findings at an allergy conference in the United States, announcing the identification of IgE, an antibody responsible for triggering allergic reactions. The identification of IgE transformed the diagnosis and treatment of allergic diseases. By understanding how this antibody binds to specific antigens and activates allergic responses, researchers and clinicians gained new tools for testing, prevention, and therapy.

To mark the significance of this achievement, the Japan Allergy Association designates the week surrounding February 20 as Allergy Week, during which educational programs and awareness activities are held for patients, families, and healthcare professionals.