Hutterites, sadly, suffer from Tragic Dirt.
Commenter Chrisnonymous draws our attention to this press release:
Growing up on an Amish farm protects children against asthma by reprogramming immune cells
House dust differences between communities affect immune development
UNIVERSITY OF CHICAGO MEDICAL CENTER
By probing the differences between two farming communities–the Amish of Indiana and the Hutterites of South Dakota–an interdisciplinary team of researchers found that specific aspects of the Amish environment are associated with changes to immune cells that appear to protect children from developing asthma.
In the Aug. 4, 2016, issue of The New England Journal of Medicine, the researchers showed that substances in the house dust from Amish, but not Hutterite, homes were able to engage and shape the innate immune system (the body’s front-line response to most microbes) in young Amish children in ways that may suppress pathologic responses leading to allergic asthma.