👉 Sensitivity is a biological process in which an organism's immune system responds to a foreign substance, such as a pathogen, by producing an allergic reaction. It involves the body's response to an antigen (a protein or chemical that causes an immune response) and can be influenced by factors such as age, sex, and genetic background. Sensitization refers to the process of an organism becoming sensitive to a particular antigen, which may lead to the development of antibodies against it, thereby reducing the likelihood

sensitisation