overfølsomhedssygdomme
Overfølsomhedssygdomme, also known as hypersensitivity diseases, encompass a group of conditions where the immune system reacts inappropriately to a substance or process, leading to damage or dysfunction. These reactions are essentially exaggerated or misdirected immune responses. They are broadly categorized into four main types, often referred to as Gell and Coombs classification.
Type I hypersensitivity, or immediate hypersensitivity, involves IgE antibodies and is responsible for common allergies such
Type II hypersensitivity, or cytotoxic hypersensitivity, involves antibodies (IgG or IgM) that target antigens on the
Type III hypersensitivity, or immune complex hypersensitivity, arises when soluble antigens bind to antibodies, forming immune
Type IV hypersensitivity, or delayed hypersensitivity, is mediated by T lymphocytes rather than antibodies. It typically
The development of overfølsomhedssygdomme is influenced by a combination of genetic predisposition and environmental factors. Diagnosis