Heated egg yolk challenge predicts the natural course of hen’s egg allergy: a retrospective study

Children do not always outgrow hen’s egg allergies in early childhood. Because egg yolks are less allergenic than egg whites, we performed an oral food challenge with heated egg yolk slightly contaminated with egg white (EYSEW OFC) in infants allergic to hen’s egg. We hypothesized that the EYSEW OFC results would predict the egg allergy’s natural course