What is meant by allergy?????
Answers
Answered by
1
Answer:
An allergy is a chronic condition involving an abnormal reaction to an ordinarily harmless substance called an allergen. Allergens can include aeroallergens such as dust mite, mold, and tree weed and grass pollen, as well as food allergens such as milk, egg, soy, wheat, nut or fish proteins.
Explanation:
mark as brainlist
Similar questions