Are cats and dogs the major source of endotoxin in homes?

Dennis Randall Ownby, E. L. Peterson, G. Wegienka, K. J. Woodcroft, C. Nicholas, E. Zoratti, C. C. Johnson

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Previous studies have suggested that exposure to cats and dogs during early childhood reduces the risk of allergic disease, possibly by increasing home endotoxin exposure. This study asked the question of whether cats and dogs are the dominant influence on dust endotoxin concentrations in homes after considering other variables reportedly associated with endotoxin. The presence of cats or dogs in homes, household and home characteristics, and dust endotoxin concentrations from 5 locations were assessed in 966 urban and suburban homes. Whether considered together as pets or as cats and dogs separately, the presence of cats and dogs significantly contributed to living room and bedroom floor endotoxin concentrations, but not to bed endotoxin concentrations. However, the two variables consistently related to endotoxin in all home sites were the home occupant density (occupants/room) and cleanliness of the home. Our data suggest that reducing occupant density and improving home cleanliness would reduce home endotoxin concentrations more than removing pet cats or dogs from the home.

Original languageEnglish (US)
Pages (from-to)219-226
Number of pages8
JournalIndoor Air
Volume23
Issue number3
DOIs
StatePublished - Jun 1 2013

Fingerprint

Endotoxins
Dust
Cats
Dogs
Pets

Keywords

  • Allergy
  • Asthma
  • Beds
  • Cats
  • Children
  • Cleanliness
  • Condition of home
  • Dogs
  • Endotoxin
  • Floors
  • Homes
  • Occupant density
  • Pets
  • Prevention

ASJC Scopus subject areas

  • Environmental Engineering
  • Building and Construction
  • Public Health, Environmental and Occupational Health

Cite this

Ownby, D. R., Peterson, E. L., Wegienka, G., Woodcroft, K. J., Nicholas, C., Zoratti, E., & Johnson, C. C. (2013). Are cats and dogs the major source of endotoxin in homes? Indoor Air, 23(3), 219-226. https://doi.org/10.1111/ina.12016

Are cats and dogs the major source of endotoxin in homes? / Ownby, Dennis Randall; Peterson, E. L.; Wegienka, G.; Woodcroft, K. J.; Nicholas, C.; Zoratti, E.; Johnson, C. C.

In: Indoor Air, Vol. 23, No. 3, 01.06.2013, p. 219-226.

Research output: Contribution to journalArticle

Ownby, DR, Peterson, EL, Wegienka, G, Woodcroft, KJ, Nicholas, C, Zoratti, E & Johnson, CC 2013, 'Are cats and dogs the major source of endotoxin in homes?', Indoor Air, vol. 23, no. 3, pp. 219-226. https://doi.org/10.1111/ina.12016
Ownby DR, Peterson EL, Wegienka G, Woodcroft KJ, Nicholas C, Zoratti E et al. Are cats and dogs the major source of endotoxin in homes? Indoor Air. 2013 Jun 1;23(3):219-226. https://doi.org/10.1111/ina.12016
Ownby, Dennis Randall ; Peterson, E. L. ; Wegienka, G. ; Woodcroft, K. J. ; Nicholas, C. ; Zoratti, E. ; Johnson, C. C. / Are cats and dogs the major source of endotoxin in homes?. In: Indoor Air. 2013 ; Vol. 23, No. 3. pp. 219-226.
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