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UNDATED (AP) -- In 1986, a newborn wrapped in a red sweater was found abandoned in the bathroom of a fast-food restaurant in Pennsylvania. Nearly three decades later, the baby is all grown up and looking for her biological mother - and tens of thousands of people are trying to help.

Twenty-seven-year-old Katheryn Deprill began her quest on March 2 by posting a photo on Facebook. The photo shows Deprill holding up a sign that says, "Looking for my birth mother ... She abandoned me in the Burger King bathroom only hours old, Allentown PA. Please help me find her by sharing my post."

A week later, Deprill's photo has been shared nearly 27,000 times by Facebook users.

Deprill says she wants to thank her biological mother for "not throwing me away."

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