The death of a 7-year-old girl at school from a peanut allergy has raised questions about a school's responsibility in treating kids with food allergies…Food allergies affect an estimated 6 to 8 percent of children under age 5, and about 3 to 4 percent of adults, according to the Mayo Clinic. Food allergies can cause a number of symptoms, ranging from digestive problems and hives to a life-threatening reaction called anaphylaxis.

CBS News, by Monica DyBuncio, 1/9/2012

Tags: Mayoclinic.com