Secretary of State Hillary Rodham Clinton has been admitted to a New York hospital after the discovery of a blood clot stemming from the concussion she sustained earlier this month.
Clinton spokesman Philippe Reines says her doctors discovered the clot during a follow-up exam Sunday. Reines says Clinton is being treated with anti-coagulants.
Clinton was admitted to New York-Presbyterian Hospital so doctors can monitor the medication over the next 48 hours.
Aides and doctors say Clinton contracted a stomach virus in early December and became dehydrated, then fainted, fell and hit her head on December 9.
She was diagnosed with a concussion on December 13 and hasn't been seen in public since.
Clinton's illness led her to cancel an overseas trip and scheduled testimony before Congress about the attack on the U.S. Consulate in Libya.
Reines said doctors will continue to assess Clinton's condition, 'including other issues associated with her concussion.'