Mariana C. Castells, MD
Editor

2011

A 2007 National Electronic Injury Surveillance System (NEISS) indicated that in the USA, 10% of the emergency room visits were due to anaphylaxis. The median age of the patients was 26 years, and 24% of the visits involved children less than 5 years of age who reacted to peanut or tree nuts. Only 19% of the patients received epinephrine and 57% of the patients presenting symptoms compatible with anaphylaxis were not recognized as having anaphylaxis upon discharge.