Allergy testing in predicting outcome of open food challenge to peanut

We read with interest the report by van Erp et al1 showing that in 81 Swedish children with suspected peanut allergy, 0.1 and 5.0 kUA/L Ara h2 cutoff values correctly predicted the outcome in 62% of children undergoing peanut double-blind placebo-controlled food challenge, and with the addition of basophil activation test Ara h 2 and 6 80% were correctly predicted. They proposed a flowchart for the diagnosis of peanut allergy. Clinicians managing peanut and other food allergies need diagnostic tools that are accurate, but also simple and readily available.

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