In an e-mail sent to colleagues, ABC News President David Westin said Vogt was in "good spirits" and will return to the United States for periodic checkups as he continues to recover from his injuries.
Westin said ABC News anchor Bob Woodruff, who was more seriously injured when the roadside bomb exploded, "continues to make good progress."
Woodruff is mildly sedated at Bethesda Medical Hospital to keep him "as comfortable as possible while he deals with the understandable pain associated with his injuries," Westin said.
He has been out of bed and sitting in a chair, but still has "a long way to go," Westin wrote.
Doctors were optimistic Woodruff would be well enough to move to a facility in the New York area within the next few weeks, he said.
Puzzle-maker slips 'Murdoch Is Evil' into Rupert Murdoch's Sunday Telegraph
Wisconsin business offering 'therapeutic cuddling' forced to close