Question

What is allergy?

Answer 1

Allergens:

1. Allergens are foreign substances that induce an immune response in the body by triggering the production of antibodies.
2. Allergy may be defined as a hypersensitivity reaction by a body to the foreign substances that enter or interact with the body.
3. Allergies are caused when the immune system reacts abnormally to a type of antigen called allergens.
4. Examples of allergies may include skin allergies, asthma, food allergies, and pollen allergies.