What’s the scoop on kids and dirt? Get enough to help, but not enough to hurt, a doctor advises
- Written by Cosby Stone, Instructor in Allergy/Immunology, Vanderbilt University Medical Center, Vanderbilt University

Whenever I am asked what I do for a living, the phrase “I’m an allergist” is almost immediately followed by “So, where are all of these allergies coming from?”
Maybe I’ll get sick of that question some day, but I...