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The Hygiene Hypothesis

  • Caroline Roduit
  • Remo Frei
  • Erika von Mutius
  • Roger Lauener
Chapter

Abstract

Over the past decades, an increase of the prevalence of allergic diseases has been observed in Western countries. The hygiene hypothesis proposes that viral, bacterial, or helminth infections; environments with high levels of microbial components, such as farms; and the nutrition are preventive against the development of allergies despite the same genetic predisposition. The timing of these exposures is crucial. The critical window of time starts already in utero and ends in school age depending on the kind of exposure. The underlying immunological mechanism of such exposures seems rather to include the induction of regulatory processes to control the allergic reaction than to prevent the production of IgE.

In this chapter, we review the best understood exposures together with the timing and the immunological mechanisms they induce to get the most preventive effect on the development of allergic diseases.

Keywords

Atopic Dermatitis TREG Cell Allergic Disease Helminth Infection Birth Cohort Study 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Wien 2016

Authors and Affiliations

  • Caroline Roduit
    • 1
    • 2
  • Remo Frei
    • 3
    • 4
  • Erika von Mutius
    • 5
  • Roger Lauener
    • 3
    • 6
  1. 1.Department of Allergy/ImmunologyChildren’s Hospital, University of ZurichZurichSwitzerland
  2. 2.Department of Allergy/ImmunologyChristine Kühne-Center for Allergy Research and EducationDavosSwitzerland
  3. 3.Christine Kühne-Center for Allergy Research and EducationDavosSwitzerland
  4. 4.Molecular Immunology, Swiss Institute of Allergy and Asthma ResearchUniversity of ZurichZurichSwitzerland
  5. 5.Department of Asthma and AllergyDr von Hauner Children’s Hospital, Ludwig Maximilians University MunichMunichGermany
  6. 6.Children’s Hospital of Eastern SwitzerlandSt. GallenSwitzerland

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