“…Population-based studies from Australia, Asia, the United States, Europe, and the United Kingdom across similar time frames, indicate rates for total anaphylaxis of between 4 and 76 per 100 000 person-years. 10 , 11 , 14 , 15 , 16 , 17 These are mostly based on inpatient and emergency data. Inherent issues with the collection and interpretation of anaphylaxis data means that making any direct comparisons between populations is open to misinterpretation.…”