Vol. 11, Issue 12 (2022)

Author(s):
RK Anish

Abstract:
Body produces too much of antibody, wrong kind of antibody, large number of antigen antibody complexes and antibodies to proteins that aren’t really foreign. A hypersensitivity reaction is an extreme or unnecessary immune response that the body has to an antigen. Each type of hypersensitivity reaction is an extreme immune response to an antigen. Each type of reaction differs based on the type of antigen the body identifies, what type of immune response the body generates, and how quickly the body produces the response. Sometimes hypersensitivity reactions are referred as allergies, as these are a form of hypersensitivity. But these terms can be used interchangeably, an allergic reaction typically refers to the signs and symptoms an animal may experience, while a hypersensitivity reaction describes the immunological process that occurs in the body.