Teresa Heinz Kerry released from the hospital

US Secretary of State John Kerry's wife, Teresa Heinz Kerry, was released from a Boston rehabilitation hospital on Saturday and is expected to make a full recovery, the State Department announced.

Earlier this month, she suffered a seizure while at her vacation home on Nantucket.

Doctors ruled out a heart attack, a stroke and a brain tumor as the cause.

The 74-year-old chairwoman of the Heinz Endowments and the Heinz Family Philanthropies walked out of the hospital, John Kerry’s personal spokesman, Glen Johnson, said.

"Mrs. Heinz Kerry has resumed routine family activities, and looks forward to the same with her civic works after a period of rest," Johnson said.

The Secretary of State thanked his security detail, members of the State Department Diplomatic Security Service, for quickly responding to his wife when she had her seizure.

“I can’t say thank-you enough to the Diplomatic Security team,” Kerry said in a statement. “I’ve seen how hard they work not just in Washington but on my travels around the world, and they’ve become a part of my family. But the agency’s professionalism and concern for my wife — from the moment of this family emergency through today — is something I will remember for the rest of my life.”