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Anaphylaxis also known as anaphylactic shock is a severe potentially fatal allergic reaction. The whole body is affected, usually within minutes of exposure to the allergen but sometimes after hours. There is a sudden drop in blood pressure and narrowing of the airways.
Anaphylaxis can be triggered by a very wide range of foods and other agents. The most common include:- peanuts, nuts, sesame, fish, shellfish, dairy products, eggs and strawberries also by wasp or bee stings, natural latex (rubber) and certain drugs such as the antibiotic penicillin.