Director / Editor: Victor Teboul, Ph.D.

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Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.

Are twins allergic to the same things?

By Breanne Hayes Haney, Allergy and Immunology Fellow-in-Training, School of Medicine, West Virginia University

An allergic reaction happens when your immune system overreacts to something that should be harmless. Whether that happens can be thanks to your genes, your environment or a combination.

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