Anaphylaxis is the most severe presentation of immediate-type hypersensitivity. It occurs rapidly and is often dramatic and unanticipated. Most episodes are not fatal; however, death may occur suddenly through airway obstruction or irreversible vascular collapse. There are at least 40 different signs and symptoms that may occur during the course of anaphylaxis. Cases related to the presentation and the management of anaphylaxis are discussed later.
- Exercise-induced anaphylaxis
- Food-dependent exercise-induced anaphylaxis
- Idiopathic anaphylaxis
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