what is allergy ? name the antibody responsible for it. also mention two chemicals released from mast cells during an allergic reaction
An allergy is a hypersensitivity disorder of the immune system.. Allergic reactions are distinctive because of excessive activation of certain white blood cells called mast cells and basophils by a type of antibody called Immunoglobulin E (IgE). This reaction results in an inflammatory response which can range from uncomfortable to dangerous.