How much is too much coverage of Robin Roberts?

Robin Roberts underwent a bone marrow transplant this month and recorded a message to fans from a hospital bed that she could “feel the love”.

NEW YORK — “Good Morning America” cameras were there last week when co-host Robin Roberts underwent a bone marrow transplant. So were her colleagues Diane Sawyer and Sam Champion, wearing surgical masks and singing songs of encouragement. All of it was on the next day’s show, along with a detailed interview with Roberts’ doctor.

A visibly spent Roberts recorded a message to fans from a hospital bed that she could “feel the love.” ABC News’ website encourages people to “follow Robin’s journey.” Followers are pitched $5 wristbands to benefit a bone marrow registry, which her “Good Morning America” co-workers wear on TV.

Everyone wishes Roberts good health. But the extent of the show’s attention raises questions about how much is too much, and whether legitimate concern can spill over into exploitation.

“It’s a fine line between educating the audience and bringing them up to date, and crossing over and turning that into a ratings booster or an audience grabber,” said Arthur Caplan, director of medical ethics at the New York University Langone Medical Center.

Education is Roberts’ motive in publicizing her fight with MDS, a blood and bone marrow disease once known as preleukemia, according to ABC.

She went through a similar process in her successful, public fight against breast cancer.

A role model was Katie Couric, credited with saving lives when she used her “Today” show platform to promote screenings for colon cancer after her husband died of the disease.

Roberts has encouraged viewers to register as bone marrow donors, and some 44,000 people have done so since she revealed her illness in June, said Jeffrey Chell, CEO of Be The Match, a Minnesota-based registry.

That’s usually a full year’s total.

The high-profile patient is a star on a morning news show that just ascended into first place in a heated ratings battle with the long-time champs at NBC’s “Today” show.

An extended absence by Roberts at a key time in that competition was a worry for ABC News, even though “Good Morning America” hasn’t lost much of its audience appeal since she left.

“You can inform and help a lot of people, but there is a tipping point,” said Shelley Ross, former “Good Morning America” executive producer and once Roberts’ boss.

“In my opinion, it has hit a tipping point when you have other anchors showing up in her hospital room (to) cheerlead. That was the point where it was not informative. It suddenly becomes a thread in a soap opera,” she said.

“I don’t think that’s the intent, but that’s what happened,” Ross said. “At a certain point, Robin needs to heal.”