Skip to main content
Canadian Medical Association Journal logoLink to Canadian Medical Association Journal
. 1970 Dec 5;103(12):1272–1276.

Christmas Tree Allergy: Mould and Pollen Studies

Derek M Wyse, David Malloch
PMCID: PMC1930673  PMID: 5485790

Abstract

A history of respiratory or other allergic symptoms during the Christmas season is occasionally obtained from allergic patients and can be related to exposure to conifers at home or in school. Incidence and mechanism of production of these symptoms were studied. Of 1657 allergic patients, respiratory and skin allergies to conifers occurred in 7%. This seasonal syndrome includes sneezing, wheezing and transitory skin rashes. The majority of patients develop their disease within 24 hours, but 15% experience symptoms after several days' delay. Mould and pollen studies were carried out in 10 test sites before, during and after tree placement in the home. Scrapings from pine and spruce bark yielded large numbers of Penicillium, Epicoccum and Alternaria, but these failed to become airborne. No significant alteration was discovered in the airborne fungi in houses when trees were present. Pollen studies showed release into air of weed, grass and tree pollens while Christmas trees were in the house. Oleoresins of the tree balsam are thought to be the most likely cause of the symptoms designated as Christmas tree allergy.

Full text

PDF
1272

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. FREGERT S., RORSMAN H. Hypersensitivity to balsam of pine and spruce. Arch Dermatol. 1963 Jun;87:693–695. doi: 10.1001/archderm.1963.01590180021004. [DOI] [PubMed] [Google Scholar]
  2. Newmark F. M., Itkin I. H. Asthma due to pine pollen. Ann Allergy. 1967 May;25(5):251–252. [PubMed] [Google Scholar]

Articles from Canadian Medical Association Journal are provided here courtesy of Canadian Medical Association

RESOURCES