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עמוד בית
Mon, 25.11.24

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November 2024
Rachel Eisenberg MD, Allon Raphael MD MPH, Matan Risling Bsc, Ilan Asher MD, Ori Toker MD

Background: Allergic rhinitis (AR) is a common illness. Worldwide prevalence varies between 5% and 50% depending on self-reported surveys, test-based studies, geographic location, and age. Despite the clinical relevance of AR in the Israeli population, few studies have characterized the sensitization profiles and key pollen aeroallergen.

Objectives: To describe the most common aeroallergens eliciting a positive skin prick test (SPT) in AR patients across three different main climate zones in Israel.

Methods: We evaluated SPT of aeroallergen sensitization in 1308 AR patients from three topographically and climatically different areas of Israel, describing humidity levels, temperature, and urbanization.

Results: The overall prevalence of positive SPT among patients presenting with AR symptoms was 86%. Indoor aeroallergen sensitization was observed in 76% of patients. Monosensitization was noted in 20% of patients, and polysensitization was noted in 65%. Among the 1308 cases of AR, the top four aeroallergens were mites, olive tree pollen, grass pollen, and cat dander. The top aeroallergen in Israel's central district were mites (62%), olive tree pollen (36%), and grass pollen (30%). In the coastal plains, mites (92%), cat dander (36%), and olive tree pollen (33%) were most prevalent, and in the south mites (77%), olive tree pollen (30%), and grass pollens (26%) were most common.

Conclusions: The top four aeroallergens eliciting a positive SPT were mites, olive tree pollen, grass pollen, and cat dander. Identification of a major aeroallergen can tailor the allergist's SPT panels and specify which aeroallergen should be used for immunotherapy.

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