The exact incidence of anaphylaxis is unknown, but appears to be increasing. Foods and drugs are the most common causes. The incidence is affected by geographical location, sex, atopy, and socioeconomic factors.
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. This record was last updated on 07/03/2016 and may not reflect the most current and accurate biomedical/scientific data available from NLM. The corresponding record at NLM can be accessed at https://www.ncbi.nlm.nih.gov/pubmed/18596588