CNN CNN Newsroom Live November 28, 2021 09:06:00
This shutting down borders for certain countries. i think we are understanding now that is already in many more countries. so they're just trying to buy time to figure out what they're dealing with. kim? >> thanks so much, paula hancocks in seoul. the u.s. hasn't confirmed any omnicon cases so far, but top infectious disease expert says he wouldn't be surprised if the virus is already in the country. >> reporter: the biden administration has refrained from saying whether they will enact other travel restrictions or mitigation measures due to the omnicron variant. president biden was out shop...