The U.S. Centers for Disease Control and Prevention confirmed the country’s first patient diagnosed with Ebola at a hospital in Dallas. But the organization ensured that there‘s “zero risk” that he infected others on his flight and that the virus will not spread in the nation.

Four Ebola patients -- medical volunteers working in West Africa -- received treatment in the country, and three of them have recovered.

“I have no doubt that we will be able to stop this in the United States,” CDC director Dr. Tom Frieden told a news conference. “At this point there is zero risk of transmission on the flight. He was checked for fever before getting on the flight.

“There is no reason to think that anyone who was on the flight he was on is at any risk,” he added.

By Um Yoon-sun (uys@heraldcorp.com)