http://www.foodallergy.org/anaphylaxis.html
Food Allergy and Anaphylaxis Network
This document provides answers to frequently asked questions about anaphylaxis, a sudden, severe, potentially fatal, systemic allergic reaction that can involve various areas of the body (such as the skin, respiratory tract, gastrointestinal tract, and cardiovascular system). The document includes information on the common causes of anaphylaxis and symptoms of an anaphylactic reaction. It also discusses who is at risk for having an anaphylactic reaction.