The CDC's warning for unvaccinated travelers came after Dr. Anthony Fauci's remarks Sunday noting that it's too soon to tell whether the pandemic has eased enough for families to gather for Christmas this year. Fauci, making the Sunday talk show rounds, said on CBS News' "Face the Nation" that Americans first need to focus on lowering the number of new infections and hospitalizations. The best way to do that: vaccination and booster shots, he said. "We've just got to concentrate on continuing to get those numbers down and not try to jump ahead by weeks or months and say what we're going to do at a particular time," Fauci said. "Let's focus like a laser on continuing to get those cases down."