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AlthoughCupressus sempervirenshas been spread over southern Europe since antiquity, cypress pollen allergy has not been reported until 1945 (). In France, the very first case reports were published in 1962 (). Since then, the prevalence of cypress pollinosis seems to demonstrate an upward trend, concomitantly with the increased use of cypress trees as ornamental plants, as wind breaks and as hedges. Hyposensitization, using improved pollen extracts, is increasingly prescribed. Besides, prevention measures begin to be implemented. Such measures include avoidance of planting new cypress trees, especially near human populations’ centres, trimming of cypress hedges before the pollination season and agronomical research for hypoallergenic trees. Altogether, such new developments in cypress allergy deserve an update review. [ABSTRACT FROM AUTHOR]