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עמוד בית
Thu, 05.12.24

ORIGINALS

IMAJ | volume 26

Journal 10, November 2024
pages: 616-620

Allergic Rhinitis in Israel: A Multicenter Study of Allergic Rhinitis Across Three Climate Zones

1 Allergy and Immunology Unit, Shaare Zedek Medical Center, Jerusalem, Israel 2 Department of Pediatrics, Shaare Zedek Medical Center, Jerusalem, Israel 3 Allergy and Clinical Immunology Unit, Kaplan Medical Center, Rehovot, Israel 4 Faculty of Medicine, Hadassah–Hebrew University School of Medicine, Jerusalem, Israel

Summary

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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