Evolution of the incidence of pollen grains and sensitivity to pollen in the city of Elche (Spain)

Asian Pacific Journal of Allergy and Immunology
Fernandez JavierGonzalez Purificaci N

Abstract

Environment-mediated pollen production varies over time and space, influencing pollen exposure risk and ultimately patient sensitization trends. In order to assess temporal variation of pollen incidence and patient sensitization, we set up a pollen incidence and patient sensitization survey in the city of Elche, Spain, over a 10-years interval. Pollen counts were obtained from a Burkard-type collector located in the city of Elche. We studied consecutive patients attending the outpatient consulting room at the Elche Hospital for suspected pollinosis (276 in 2005), and compared observed trends with cases from 1995 (200). Skin tests were performed for most of the common pollen in our area. The total pollen count increased by 41% from 1995 (13,219) to 2005 (22,854). There were significant counts differences between 1995 and 2005 in Olea europaea (2,018 vs. 4,433), Phoenix dactylifera (3,130 vs. 3,891), and Cupressaceae (1,212 vs. 3,115). The differences between sensitization to pollen in both years were mainly for those in relation to Olea europaea (51.4% vs. 74.9%), Salsola kali (53.7% vs. 71.8%), Parietaria judaica (10.3% vs. 21.5%), Phoenix dactylifera (5.6% vs. 22.3%), Plantago lanceolata (17.8% vs. 38.5%), and Poaceae (47.7% v...Continue Reading

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