KnowraAllergenLinked fromLinked fromThe 13 pages that link to Allergen, each with the reason it gives.All 13Broader topic 2Related 6Narrower topic 3Compared with 2AntigenBroader topic: Allergens are antigens whose recognition can trigger harmful hypersensitivity.AllergyBroader topic: This is the usually harmless substance the immune system mistakenly targets.