IMMUNOLOGY

Detailed explanation-1: -The anaphylactic response is mediated by IgE antibodies that are produced by the immune system in response to environmental proteins (allergens) such as pollens, animal danders, or dust mites.

Detailed explanation-2: -Maladaptive immune responses toward harmless foreign substances or self antigens that occur after tissue sensitization are termed hypersensitivities.

Detailed explanation-3: -Antigens that can induce an allergic response are called allergens, and they are often derived from non-infectious or non-microbial sources.

Detailed explanation-4: -Allergies. The immune reaction that results from immediate hypersensitivities in which an antibody-mediated immune response occurs within minutes of exposure to a usually harmless antigen is called an allergy.

Detailed explanation-5: -When a harmless substance such as dust, mold, or pollen is encountered by a person who is allergic to that substance, the immune system may over react by producing antibodies that “attack” the allergen. The can cause wheezing, itching, runny nose, watery or itchy eyes, and other symptoms.

Detailed explanation-6: -Allergy occurs when a person reacts to substances in the environment that are harmless to most people. These substances are known as allergens.

Detailed explanation-7: -Anaphylaxis is the result of the immune system, the body’s natural defence system, overreacting to a trigger. This is often something you’re allergic to, but not always. Common anaphylaxis triggers include: foods – including nuts, milk, fish, shellfish, eggs and some fruits.