Possible therapy takes bite out of peanut allergy

Gerry Broome/AP

Dr. Wesley Burks MD, left, speaks with 4 year-old Ashlyn Chadwick and her mother Karen about Ashlyn’s peanut allergies during a clinic at the Duke South Clinic at Duke University in Durham, N.C., Tuesday, March 10, 2009. Medical student Sean Prater looks on along with Dr. Edwin Kim, center. A handful of children once severely allergic to peanuts now can eat them without worry. Scientists have retrained their immune systems so they’re allergy-free.