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Camille Mann /

CBS News/ January 1, 2013, 1:35 PM

Robin Roberts celebrates 100 days since transplant

Robin Roberts is shown during a broadcast of "Good Morning America" on Aug. 20, 2012, in New York.

Robin Roberts is shown during a broadcast of "Good Morning America" on Aug. 20, 2012, in New York. / AP Photo/ABC

"Good Morning America" co-host Robin Roberts says she's reached a "major milestone" in her bone marrow transplant recovery.

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Robin Roberts

Roberts, who underwent the transplant to treat MDS, a blood and bone marrow disease, celebrated 100 days since her surgery on Saturday.

She celebrated the big day by being reunited with her dog KJ, who was being taken care of by friends while she recovered.

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