The heart that was dropped onto the street while being transported to a hospital in Mexico has been successfully transplanted into a 28-year-old hair stylist, Erika Hernández. But the patient doesn't know the hole story of her transplant.

Dr. Jaime Saldivar says Hernández doesn't yet know that her new heart made national news when a medic stumbled and the plastic-wrapped heart tumbled out of a cooler onto the street two weeks ago.

Saldivar says it will be up to the family to tell her.

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A rosy-cheeked Hernández spoke briefly with reporters on Tuesday and thanked the donor's family, saying "I have no words to express what I'm feeling right now."

Hernández was born with a congenital heart defect. She received the heart of a man who died in a car accident.

Mexico City police say they used a helicopter to deliver the heart in "a rapid, precision maneuver." But after exiting the chopper, a medic stumbled and the plastic-wrapped heart tumbled out of a cooler onto the street.

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Newspaper reader Christian Sabido posted one of the more printable online comments, saying: "Anybody can make a mistake, but with this type of thing you should be careful."

Based on reporting by the Associated Press.

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