By Melanie Thernstrom, New York Times
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An experimental new treatment seeks to release children from the terror of severe food allergies.

The rate of food allergies has more than doubled over the past decade, and there are now an estimated 5.9 million children in the United States with food allergies (along with another 2.3 million adults); to put it another way, in every classroom, roughly 1 in 13 children will have a food allergy. That number may rise in the future, as food allergies are now even more prevalent in children between 3 and 5 years old — nearly 1 in 10 preschoolers — and it seems as if children aren’t growing out of their allergies at the rate they did before.