U.S. Secretary of State Hillary Clinton is recovering at home after suffering a concussion, a spokesman said Saturday.

“While suffering from a stomach virus, Secretary Clinton became dehydrated and fainted, sustaining a concussion,” Philippe Reines said in a statement. “She has been recovering at home and will continue to be monitored regularly by her doctors.”

At the recommendation of her doctors, “she will continue to work from home next week, staying in regular contact with Department and other officials,” he said. Ms. Clinton canceled a trip to North Africa last week due to illness.

Congressional aides do not expect her to testify as scheduled at congressional hearings on Thursday into the Sept. 11 attack against a U.S. diplomatic outpost in Benghazi, Libya, that killed four Americans, including the U.S. ambassador.

The aides spoke on condition of anonymity because they weren't authorized to publicly discuss Ms. Clinton's status.