The session will provide an update on hygiene hypothesis in 2021 and describe studies correlating environment with Type 2 immune response.

Upon completion of this activity, participants should be able to:

  • Describe how studies on Amish and Hutterite children contributed to our understanding of the asthma-protective 'farm effect'
  • Provide an update on the hygiene hypothesis
  • Describe the role of environment in the development of atopic disease


Moderator Introduction
Angela Haczku, MD PhD
UC Davis

T-Cell Phenotypes and Immunoglobulin-E (IgE) Correlations in Amish and Hutterite Children
Anne Sperling
University of Chicago

Hygiene Hypothesis: Where Do We Stand in 2021?
Donata Vercelli, MD
The University of Arizona

Immune Development and Environment: Can We Intervene to Reduce Risk of Allergic Diseases?
Christine Cole Johnson, PhD MPH FAAAAI


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