Aimee Copeland, the 24-year-old who lost her hands, feet and leg to the flesh-eating bacteria earlier this year, astounded audience members Tuesday by walking onto the stage of "Katie" using a prosthetic limb and a walker.

"That felt so good," Copeland said in answer to Katie Couric's question about how it felt to walk again. "I've been sitting or lying down for so long, just being vertical. You take for granted being able to look people in the eye."

The interview, which lasted nearly an hour, featured the fearless 24-year-old, along with her older sister, Paige, and parents Andy and Donna Copeland...

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