Assertion: allergy | /r/Synonym | allergen
Facets:
Source sentences:
text: Common allergies Substances that cause allergic reactions are called allergens.
text: Read more about identifying foods that cause allergies (allergens).
text: Allergies are basically an abnormal immune system response against normally harmless substances, called allergens.
text: Substances that cause allergic reactions are allergens.
text: Foods that cause allergic reactions are called allergens.
text: A substance that causes an allergic reaction is called an allergen.