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What causes anaphylaxis?

Anaphylaxis occurs when your immune system overreacts to a trigger that would be harmless for most people. Common triggers include: certain foods (e.g., nuts, shellfish), insect venom (e.g., bees or wasps) and some medications (e.g., penicillin or aspirin). Less common causes of anaphylaxis include exercise, anesthesia and latex. Sometimes, even after extensive testing, the cause of anaphylaxis cannot be found.

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About this article

Author: Dr Joanne Van der Velden PhD, BSc (Hons)
First answered: 18 Sep 2014
Last reviewed: 19 May 2018
Rating: 4.2 out of 5
Votes: 1277 (Click smiley face below to rate)
Category: Asthma


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