title: [Combined allergy against hazel pollen and hazel nuts].
abstract: 225 patients with hazel pollen allergy were examined by means of cutaneous tests and RAST. In the scratch test, 92% of the patients revealed a sensitization to hazelnuts; clinically manifest or latent, only detectable by skin tests and RAST. A significant incidence of the manifest hazelnuts allergy can be seen only in patients with a polyvalent sensitization and in patients, whose complaints of pollinosis start in the flowery of hazel, i.e. February/March, and who are very strongly sensitive to hazel pollen. The results of our study indicate, that an antigenic relationship between hazel pollen and hazel-nuts exists. Very frequently we found an additional allergy to the botanically related pollen of white beech, alder, birch, beech and oak and an allergy to several fruits and vegetables.
mesh_terms: D005512:Food Hypersensitivity / Q000276:immunology*; D005638:Fruit / Q000009:adverse effects; D006801:Humans; D006967:Hypersensitivity / Q000276:immunology*; D009754:Nuts / Q000009:adverse effects*; D011058:Pollen; D011852:Radioallergosorbent Test; D012882:Skin Tests; D014675:Vegetables / Q000009:adverse effects
vernacular_title: Gemeinsames Vorkommen von Allergien gegen Haselpollen und gegen Haselnüsse.