Po PolskuInstitute for Tuberculosis and Lung Diseases, Pediatric Division in Rabka, Poland
Published in: R. Spiewak (Editor): "Pollens and Pollinosis: Current Problems". Institute of Agricultural Medicine, Lublin (Poland) 1995, page 55.
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The aim of the study was to evaluate changes in specific IgE antibodies against aeroallergens found in material collected in Rabka during the years 1991-1995.
The Burkard volumetric spore trap was used for collecting pollens, which were evaluated quantitatively and qualitatively. Sera from children with lung diseases were examined for specific IgE levels by RAST and CAP-Pharmacia. Results equal second class or higher were classified as positive.
During the study period the most prevalent in aeroallergen count were fungal spores - from 74% in 1995 to 92% in 1992. Corresponding specific IgE were positive in 5% (in 291 examinations) and 10% (in 90 examinations) children. Second aeroallergens as to observed prevalence were tree pollens: pine and spruce, from 2% (1502 grains) in 1994 to 4% (2192 grains) in 1995, while specific IgE were absent in sera examined in both years. Prevalence of birch pollens was as low as 0.1% (19 grains) in 1992 and as high as 2.5% (1725 grains) in 1994, but specific IgE were positive in 20% (25 examinations) and in 8% (72 examinations), respectively.
Third group of important aeroallergens comprises pollens of grass and corn: 1% (748 grains) in 1994 and 2% (1739 grains) in 1992. Specific IgE to these aeroallergens were the most prevalent. In those years 39% (906 examinations) and 53% (500 examinations) of sera had high level of specific IgE. From all weeds the most common were pollens of nettle - prevalence from 0.9% (902 grains) in 1992 to 1.5% (1034 grains) in 1994. Specific IgE were found in 20% (10 examinations) and in 14% (14 examinations), respectively.
We did not find a correlation between levels of pollens/spores and IgE specific levels in childrens' sera. The most common aeroallergens were fungal, mainly Cladosporium, but corresponding levels of specific IgE were relatively low. On other hand, numbers of grass pollens were low during whole year, but results of positive IgE test were highest and physicians asked most often for this examination.
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