U.S. Secretary of State Hillary Clinton has suffered a concussion after fainting while battling a stomach virus. The virus, which she caught while on a recent visit to Europe, caused her to miss a planned trip to North Africa and the Gulf. "While suffering from a stomach virus, Secretary Clinton became dehydrated and fainted, sustaining a concussion," the State Department said in a statement. "She has been recovering at home and will continue to be monitored regularly by her doctors. At their recommendation, she will continue to work from home next week, staying in regular contact with department and other officials. She is looking forward to being back in the office soon."