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Undeclared allergens in processed products represent a major health problem for sensitized persons. Peanut flour and gluten are known as potent food allergens. The study was designed to evaluate with enzymeimmunoassay (ELISA) test kits the presence of gluten and peanut in Polish products. Hidden peanut contamination was detected in 4 of 34 (11.8%) processed foods (corn crisps, wafers, cereal bar and halva). 5 of 37 (13.5%) foodstuffs (cornflakes, corn crisps, bouillon cube, vegetable soup for infants, curry powder) contained undeclared gluten. The nutritional management of sensitized persons with food allergy requires new labeling regulations.

Unlabelled: Among 527 children and young in age from 2 months to 19 years of life it has been separated the group 70 with increased specific IgE levels to hazelnuts or/and to peanuts. In them it has been determined specific IgE to pollen birch and it has been make correlation the results with the symptoms. Specific IgE has been determined immunoenzymatic Visagnost Tosse Diagnostika method. The control group stand 34 children in the same age with the infections symptoms. In the infants group--13 (59.1%) had sIgE to birch, in children 2-3 age group--15 (75%), in 406 age--8 (72.7%), in the school age--7 (87.5%) and in young > 16 age--8 (88.9%). In the control group found absence sIgE to each of examination allergens. In 5 infants in the time of the pollen birch (April 1993) it has been manifestation dyspnoea. In group 2-3 age--in 10 (45.5%) found pollinosis symptoms, 12 (60%) had asthmatic dyspnoea, 7 (35%) atopic dermatitis, 2 (10%) allergic rhinoconjunctivitis and 5 (25%) abdominal pain with concomitant dyspnoea. It has been characteristic, that never found one of clinical allergic symptoms. In group 5-6 age and 7-15 age it has been dominated atopic dermatitis (63.3% and 87.5%), pollen asthma (45.4% and 62.5%) and pollinosis (45.4% and 25%). While in young 16 age--8 (88.8%) had pollinosis, 5 (55.5%) had atopic dermatitis and pollinosis., The Conclusion: 1. In children which had specific IgE to nuts increased together with age specific IgE to birch. 2. The gravely pollinosis symptoms appear in small children in 1-2 age of life, already.(ABSTRACT TRUNCATED AT 250 WORDS)