Transcript for Biden to impose new travel bans as alarm of new COVID-19 variants grow
due the pandemic. We'll talk about how it's going to go down. But first, the race to vaccinate Americans, people lining up at mass vaccination sites across this country, from here in New York to a 24-hour site in Phoenix. Nearly 22 million doses administered. And there are some only couraging signs this morning, we're starting to see cases decline in parts of the country. Hospitalizations are the lowest in more than a month. But first, let's go to Eva pilgrim at a vaccination site in Jones beach, New York, with those dangerous covid variants surfacing. Good morning, Eva. Reporter: There are not enough vaccines for all the people who want them. I want you to take a look at our drone footage. This site is expected to open up at 8:00 A.M. So many people say they'll show up at what ever time available to get their vaccine. The morning, as concerns intensify, predominantly from overseas, the U.S. Will begin restricting travel from south Africa, banning most non-u.s. Citizens who have recently traveled to the country from entering the states as well as re-imposing the travel ban for Brazil, the uk, Ireland and 26 countries across Europe to mitigate the spread of the virus. The move comes as the uk variant which scientists say is likely more contagious and possibly more dangerous has already been reported in at least 22 states. Even the virus ended up not being more deadly the fact that it's more contagious it will infected more people, more hospitalizations and a lot more deaths. Reporter: This weekend, the U.S. Crossing yet another milestone -- more than 25 million covid-19 cases reported here since the start of the pandemic. According to the covid tracking project, last weekend, an average of two Americans tested positive every second, with more than one death -- the report to get vaccinated urgent but slow. Some states now temporarily can selling appointments saying they don't have supply in stock. Millions of doses are being delivered throughout the country every week, but in New York City, city field the home of the mets was supposed to open as a mass vccination site this weekend. But plans delayed due to shortage on the federal level. The new CDC director frustrated by the passdown she was given by the last administration. I can't tell it to the governors and the state health officials, if they don't know how much vaccine they're getting, not only this week, but next week and the week after they can't plan. More vaccine could be on the way, Johnson and Johnson is expected their phase 3 trial results some time in the next few weeks. They could be before the fda for eua by mid-february. The number of covid cases across the country is slightly down and we're now hearing that the governor of California is expected to announce that he's lifting that stay-at-home order there. Officials say with all this positive news, though, we have to stick to those basics, we're not out of the woods yet, wear your mask, social distance and make sure to wash your hands. George? Thanks, Eva.
This transcript has been automatically generated and may not be 100% accurate.