Flanagan gets silver medal
Bronze medallist Flanagan posted a picture of herself on Twitter, kissing her newly acquired silver medal in celebration.
The United States Olympic Committee confirmed that Flanagan had been upgraded to silver after a retest of a sample belonging to Ethiopian-born runner Abeylegesse from the 2007 World Championships found traces of banned drugs.
Flanagan said she had declined an offer from USOC to have her silver awarded at a public ceremony.
"Receiving my proper medal and having the record books changed is a dream come true," Flanagan said.
"I greatly appreciate the USOC's efforts to host a more formal medal ceremony in my honor, but with my coach and my family, I have decided to forego that option and instead celebrate in private," she added.
"This news, and receiving my medal, are all that I need to feel incredibly fulfilled and happy. I'm honored and proud to officially be the 2008 10,000-meter silver medalist."
Flanagan, 36, has concentrated on the marathon in the years since her 2008 Olympic campaign. She finished sixth in the women's marathon at the 2016 Olympic games in Rio de Janeiro.