👉 Immunized is a medical term that refers to a person who has been given a vaccine or other treatment to prevent or treat a disease. This process involves administering a small amount of a specific substance called a vaccine or a medication to the body, which can help protect it from getting sick or having a serious illness caused by the disease. For example, if someone is allergic to peanuts, they might be immunized against peanuts using a vaccine that contains a protein called peanut-allergic IgE. This