Transcript for Young Girl Saved by Bone Marrow Donation Half a World Away
The -- word miracle gets tossed around perhaps a little too loosely at times -- people in the news business but this next story may genuinely qualify in -- a feisty little girl. A rare and potentially fatal illness at a one in a million donor match. Here's ABC's -- get a -- Humor Erdman is a little girl whose faith and very big challenges. At just six months old diagnosed with a rare and often fatal autoimmune disease he no -- ghosts psychic -- -- his DO -- hostess. Affecting just one in one point two million. Through grueling chemo and steer -- treatments nearest parents say her spirits remained strong. Even using dance as a form of therapy. -- But ultimately her only hope for survival a bone marrow transplant. Her doctors desperately searched for a match but none of nearest family members were compatible not even her twin brother. So -- was added to -- even match national registry. But no one was down for her here in the US they searched around the globe find the perfect match was found a world away in Germany. -- now one in a million he's like one in fifteen million. Or more. But complications. Soon set in. After a year of recovery -- pulls through. There -- never knew who the donor was as they're required to remain anonymous for two years. -- -- Until last week when Europe finally met Christian -- the man who saved her. Life we cried -- hi -- Daniel is just really emotional. The two have become fast friends. Would you see that she's also happy and had to you have to all of that. For the ordinance it was no small gesture giving them back the little girl they now called Mira -- Morris -- -- ABC news New York.
This transcript has been automatically generated and may not be 100% accurate.