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Anaphylaxis in adults

The term anaphylaxis is usually used to describe hypersensitivity reactions, typically medicated by immunoglobulin E (IgE). Anaphylactoid reactions are similar but do not rely on hypersensitivity. However, their manifestations and management are similar (Jevon, 2000; Project Team of the RCUK, 2002). See Box 1 for a list of possible causes.

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