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• W2029123260 abstract "RATIONALE: Common ragweed (Ambrosia artemisiifolia) is a major pollen allergen in Hungary and has progressively spread over Europe during the last decades. A rising prevalence of ragweed pollen allergy claimed for several European countries is insufficiently validated by longitudinal observation studies in large patient populations. We explored the progression of ragweed sensitization in Austria since 1997.METHODS: Routine skin prick test results to ragweed pollen and other inhalant allergens were retrospectively analysed in 13,719 atopic patients diagnosed between 1997 and 2007. Sensitization rates were compared between different geographical areas with dissimilar ragweed infestation.RESULTS: Although the frequency of ragweed pollen sensitization increased from 8.5% in 1997 to 17.5% in 2007, its mean prevalence (11.1%) was still much lower than that of other pollens (grass 56%, birch 42%, mugwort 22%), house dust mite (37%) and cat (33%). Ragweed sensitization was commonly associated with concomitant sensitization to mugwort (1066/1523; 70%) and multiple pollen allergy (551/1523; 36%) suggesting a role of cross-reactions with mugwort allergens and pollen panallergens in positive prick test reactions to ragweed. The prevalence of ragweed sensitization was highest in the Eastern lowlands adjoining Hungary (20.8%) and lowest in alpine regions (4.7-6.0%).CONCLUSIONS: The increase in sensitization rates to ragweed pollen in the observation period is still moderate even though sensitization is more frequent in areas with high local ragweed load. Discrimination between genuine ragweed sensitization and cross-reactivity is crucial in future epidemiologic studies. In all, ragweed still plays a secondary role compared to other locally important inhalant allergens. RATIONALE: Common ragweed (Ambrosia artemisiifolia) is a major pollen allergen in Hungary and has progressively spread over Europe during the last decades. A rising prevalence of ragweed pollen allergy claimed for several European countries is insufficiently validated by longitudinal observation studies in large patient populations. We explored the progression of ragweed sensitization in Austria since 1997. METHODS: Routine skin prick test results to ragweed pollen and other inhalant allergens were retrospectively analysed in 13,719 atopic patients diagnosed between 1997 and 2007. Sensitization rates were compared between different geographical areas with dissimilar ragweed infestation. RESULTS: Although the frequency of ragweed pollen sensitization increased from 8.5% in 1997 to 17.5% in 2007, its mean prevalence (11.1%) was still much lower than that of other pollens (grass 56%, birch 42%, mugwort 22%), house dust mite (37%) and cat (33%). Ragweed sensitization was commonly associated with concomitant sensitization to mugwort (1066/1523; 70%) and multiple pollen allergy (551/1523; 36%) suggesting a role of cross-reactions with mugwort allergens and pollen panallergens in positive prick test reactions to ragweed. The prevalence of ragweed sensitization was highest in the Eastern lowlands adjoining Hungary (20.8%) and lowest in alpine regions (4.7-6.0%). CONCLUSIONS: The increase in sensitization rates to ragweed pollen in the observation period is still moderate even though sensitization is more frequent in areas with high local ragweed load. Discrimination between genuine ragweed sensitization and cross-reactivity is crucial in future epidemiologic studies. In all, ragweed still plays a secondary role compared to other locally important inhalant allergens." @default.
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• W2029123260 date "2011-02-01" @default.
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• W2029123260 title "Ragweed Pollen Allergy in Austria: a Retrospective Analysis of Sensitization Rates from 1997 to 2007" @default.
• W2029123260 doi "https://doi.org/10.1016/j.jaci.2010.12.675" @default.
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