IGHE and Allergy: Persistent specific IgE towards this component are associated with a greater risk of allergy persistence in adulthood and of subsequent sensitization to inhalants); Gal d 2 (ovalbumin, partially thermostable, well digested at very low pH) [38]; Gal d 3, (ovotransferrin, thermolabile, partially cross-reacting with chicken serum albumin) [39]; Gal d 4, (lysozyme, thermolabile on cooking over 80 °C for at least 2 minutes, often hidden allergen because used as additive for its bacteriostatic actions) [40].