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Are house dust mite allergen levels influenced by cold winter weather?
Allergy 2005; 60(8):1079-82A

Abstract

BACKGROUND

Moisture is vitally important for house dust mites and they cannot survive in cold or hot-dry climates.

AIMS OF THE STUDY

To investigate the influence of two extraordinarily cold and dry winters in 1995/1996 and 1996/1997 on house dust mite levels in German homes.

METHODS

Dust samples were collected between June 1995 and December 2001 on the mattresses of 655 adults and 454 schoolchildren living in five different areas of Germany. We compared house dust mite allergen Dermatophagoides pteronyssinus (Der p 1) levels before and during the winters of 1995/1996 and 1996/1997 with levels after these winters.

RESULTS

D. pteronyssinus (Der p 1) levels in samples taken after the cold winters of 1995/1996 and 1996/1997 were approximately two times lower than Der p 1 levels in dust samples collected before or during these respective winters (Geometric means: Erfurt 89 vs 33 ng/g; Hamburg 333 vs 219 ng/g; Bitterfeld, Hettstedt, and Zerbst 296 vs 180 ng/g). Except for Hamburg, the decrease in Der p 1 levels was statistically significant. D. pteronyssinus levels measured in dust samples collected in 2001 (i.e. 3 years after the two cold winters) show a statistically non-significant increase (Geometric means: Erfurt 33 vs 39 ng/g; Hamburg 219 vs 317 ng/g), suggesting that it may take a long time for mite allergen levels to increase again after a sudden decrease.

CONCLUSION

We conclude that Der p 1 levels in German mattress dust samples have been approximately reduced by a factor of three to four by the two consecutive cold winters of 1995/1996 and 1996/1997.

Authors+Show Affiliations

Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15969691

Citation

Gehring, U, et al. "Are House Dust Mite Allergen Levels Influenced By Cold Winter Weather?" Allergy, vol. 60, no. 8, 2005, pp. 1079-82.
Gehring U, Brunekreef B, Fahlbusch B, et al. Are house dust mite allergen levels influenced by cold winter weather? Allergy. 2005;60(8):1079-82.
Gehring, U., Brunekreef, B., Fahlbusch, B., Wichmann, H. E., & Heinrich, J. (2005). Are house dust mite allergen levels influenced by cold winter weather? Allergy, 60(8), pp. 1079-82.
Gehring U, et al. Are House Dust Mite Allergen Levels Influenced By Cold Winter Weather. Allergy. 2005;60(8):1079-82. PubMed PMID: 15969691.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Are house dust mite allergen levels influenced by cold winter weather? AU - Gehring,U, AU - Brunekreef,B, AU - Fahlbusch,B, AU - Wichmann,H-E, AU - Heinrich,J, AU - ,, PY - 2005/6/23/pubmed PY - 2005/12/13/medline PY - 2005/6/23/entrez SP - 1079 EP - 82 JF - Allergy JO - Allergy VL - 60 IS - 8 N2 - BACKGROUND: Moisture is vitally important for house dust mites and they cannot survive in cold or hot-dry climates. AIMS OF THE STUDY: To investigate the influence of two extraordinarily cold and dry winters in 1995/1996 and 1996/1997 on house dust mite levels in German homes. METHODS: Dust samples were collected between June 1995 and December 2001 on the mattresses of 655 adults and 454 schoolchildren living in five different areas of Germany. We compared house dust mite allergen Dermatophagoides pteronyssinus (Der p 1) levels before and during the winters of 1995/1996 and 1996/1997 with levels after these winters. RESULTS: D. pteronyssinus (Der p 1) levels in samples taken after the cold winters of 1995/1996 and 1996/1997 were approximately two times lower than Der p 1 levels in dust samples collected before or during these respective winters (Geometric means: Erfurt 89 vs 33 ng/g; Hamburg 333 vs 219 ng/g; Bitterfeld, Hettstedt, and Zerbst 296 vs 180 ng/g). Except for Hamburg, the decrease in Der p 1 levels was statistically significant. D. pteronyssinus levels measured in dust samples collected in 2001 (i.e. 3 years after the two cold winters) show a statistically non-significant increase (Geometric means: Erfurt 33 vs 39 ng/g; Hamburg 219 vs 317 ng/g), suggesting that it may take a long time for mite allergen levels to increase again after a sudden decrease. CONCLUSION: We conclude that Der p 1 levels in German mattress dust samples have been approximately reduced by a factor of three to four by the two consecutive cold winters of 1995/1996 and 1996/1997. SN - 0105-4538 UR - https://www.unboundmedicine.com/medline/citation/15969691/Are_house_dust_mite_allergen_levels_influenced_by_cold_winter_weather L2 - https://doi.org/10.1111/j.1398-9995.2005.00872.x DB - PRIME DP - Unbound Medicine ER -