Good Morning America co-host Robin Roberts (Michael Loccisano/Getty Images Entertainment)

Good Morning America's Robin Roberts, who underwent a bone marrow transplant in September to treat myelodysplastic syndrome, spent a week in the hospital after contracting a common virus that her weak immune system wasn't able to fight off, she told Facebook fans in a blog post when she was released on Friday.

From Essence:

"Our immune systems usually take care of a virus like this 
 but mine is only 59 days old," she wrote. "Physically I felt fine but being back in the hospital took an emotional toll on me. The wonderful doctors, nurses and support staff lifted my spirits 
 it was comforting seeing them again. They assured me the majority of BMT patients have to be re-admitted to the hospital for various reasons. I decided to look at my brief stay as a "tune up"
 and then I would be back on the road to recovery. By the grace of God, I am! The virus is under control and my numbers are going back up."

Roberts has possibly set a new standard for keeping concerned and adoring fans updated on her physical and emotional status during an illness. A hospital interview, conducted by her sister, will air on Good Morning America Tuesday morning.

Read more at Essence.