Walnut Allergy Across Europe: Distribution of Allergen Sensitization Patterns and Prediction of Severity.

Background: Walnut allergy is common across the globe, but data on the involvement of individual walnut components are scarce.

Objectives: To identify geographical differences in walnut component sensitization across Europe, explore cosensitization and cross-reactivity, and assess associations of clinical and serological determinants with severity of walnut allergy.

Methods: As part of the EuroPrevall outpatient surveys in 12 European cities, standardized clinical evaluation was conducted in 531 individuals reporting symptoms to walnut, with sensitization to all known walnut components assessed in 202 subjects.

Hazelnut allergy across Europe dissected molecularly: A EuroPrevall outpatient clinic survey.

Background: Hazelnut allergy is birch pollen-driven in Northern/Western Europe and lipid transfer protein-driven in Spain and Italy. Little is known about other regions and other allergens.

Objective: Establishing a molecular map of hazelnut allergy across Europe.

Kiwifruit allergy across Europe: clinical manifestation and IgE recognition patterns to kiwifruit allergens.

Background: Kiwifruit is a common cause of food allergy. Symptoms range from mild to anaphylactic reactions.

Objective: We sought to elucidate geographic differences across Europe regarding clinical patterns and sensitization to kiwifruit allergens.