The Amish dust was loaded with debris from bacteria; the Hutterite dust was not. They looked at 30 Amish children and 30 Hutterite children and asked what sort of immune cells were in their blood. With the Amish children, Dr. Sperling said, it would clearly take a lot more provocation to set off an allergic response. By contrast, six of the 30 Hutterite children had asthma, and all of them had far fewer neutrophils in their blood. Advertisement Continue reading the main story“We found exactly what we found in the children,” Dr. Vercelli said.

Source: New York Times August 03, 2016 21:03 UTC