But even as he expressed optimism about the pace of vaccinations, he warned Americans that the nation is not yet out of the woods when it comes to the pandemic. That puts the president well on track to meet his new goal of 200 million shots administered by his 100th day in office on 30 April.
"We can see a light at the end of the tunnel", she said.
That included then-Centers for Disease Control Director Dr. Robert Redfield and infectious disease expert Dr. Anthony Fauci.
"That would be a setback for public health, but that would be a psychological setback, too", he said during an interview with the National Press Club.
At least a dozen states opened eligibility to anyone 16 and older on Monday alone, while New Jersey and OR announced this week that all residents 16 and older will become eligible on April 19.
Biden is also expected to announce that the USA administered 150 million doses in his first 75 days in office, a pace that puts him on track to surpassing his previously stated goal of reaching 200 million doses in his first 100 days.
Meanwhile, President Joe Biden has brought forward to 19 April the date by which all American adults will be eligible for a Covid vaccine. Being eligible means people can sign up to reserve their place in a virtual line until they can schedule an appointment. "There will be no federal vaccinations database and no federal mandate requiring everyone to obtain a single vaccination credential".
Psaki said that the strongest interest comes from private businesses looking to reopen sites where "there are large swaths of people", like in stadiums or theaters.
The country is averaging 3.1 million shots per day over a 7-day period, White House officials said on Monday, and reached a new milestone over the weekend with an unprecedented 4 million vaccinations recorded in one day.
Two of the three vaccines requires two doses administered several weeks apart.