Is allergy a communicable disease?

No. An allergy is a non-communicable disease. Unlike the flu, allergies are not contagious. It occurs when the person's immune system overreacts to a substance that is typically not harmful. Non-communicable diseases are those that are not spread from person to person. They are generally caused by an allergy, cell proliferation abnormalities, and extended illness.

Illness such as strep throat, or the common cold caused by bacteria or viruses can spread from person to person, which means they are communicable. For example, most skin allergies are not contagious. This situation is because the way that one individual responds to an allergen may not be the same as someone else's reaction, even if the two people have the same condition.

No, allergy is not a communicable disease. Allergies occur as a result of your body’s immune response to certain substances (triggers). Your immune system is hyperactive as it attacks harmless substances such as dust mite, certain foods, animal dander, pollen, and so on. Allergies are not contagious, and it cannot be transferred from person to person.

Communicable diseases are diseases that can be transferred from an affected person to other persons. A popular example of communicable disease is a cold; you can catch a cold from a simple handshake or sneeze from an infected person. Although allergies are not communicable, some people have a tendency to inherit allergies from their parents. Genetic predisposition plays an important role in acquiring an allergy.