Transcript for Long lost sisters reunite through shared history and DNA test results

Finally tonight, long-lost sisters separated at birth who never knew the other existed until now. For those whore watching, hello. Reporter: This is 18-year-old Hannah Abrams taking us along for the ride. She'about to have a magical nt that she ll never forget. I'm meeting biological sister today. Very excited. Reporter: Ande's that moment. Oh, my gosh. Reporter: Just look at Hannah's fe. Hi! Alright, so is is Juliana. Hi! Reporter: Her older sister Juliana nearly a carbon copy. Just slightly tall. Both Y woman who WER adopted out of China. Nnah grow up in Florida. Julianna in D.C. In January, Juliana took a 23 and me DNA. Hannah alreadyaken hers last year. I gotannah's name. We were 49 genetic match. Reporter: Julianaeached out on Facebook. At first, I thought is a am. You don't know about these internet things. I clked on her profile. I looked at her face yeah, this is definitely my sister. Reporter: They both STA to compare photos. Could they really be sisters? L it was just my face on another girl. Just likr expression the way she looks how I sit and how was pretty surreal. Eporter: The experience surreal, but also heart-wrenching. Just like finding your family -- I'm so sorry. Reporn the middle of our terview, Juliana walked off camera, then coming back to explain the whirlwind of emotion. Finding your family is like something I always wanted. So finding Hannah -- Rorter: Her little sister still worried about oning -- I'm from a family who lov to hug. Some pple don't like thug. I was like what if julin isn't one of those pe doesn't LI to hug. We hug. Reporr: The two sisters stay in touch, savoring this moment and reao move forward together It's just like you can't believe it. That's why I couldn't stop crying. We thank them for sharing their story. "Good morning America" an "Thiweek" in the morning. I'll see you right back here

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