Biden, calling the push a "wartime effort," said Tuesday the administration was working to buy an additional 100 million doses of each of the two approved coronavirus vaccines. He acknowledged that states in recent weeks have been left guessing how much vaccine they will have from one week to the next.
Shortages have been so severe that some vaccination sites around the U.S. had to cancel tens of thousands of appointments with people seeking their first shot.
"This is unacceptable," Biden said. "Lives are at stake."
He promised a roughly 16% boost in deliveries to states over the next three weeks.
The administration said it plans to buy another 100 million doses each from drugmakers Pfizer and Moderna to ensure it has enough vaccine for the long term. Even more vaccine could be available if federal scientists approve a single-dose shot from Johnson & Johnson, which is expected to seek emergency authorization in the coming weeks.
The Centers for Disease Control and Prevention reported that the government plans to make about 10.1 million first and second doses available next week, up from this week's allotment of 8.6 million. The figures represent doses of both the Pfizer and Moderna vaccines. It was not immediately clear how long the surge of doses could be sustained.
Governors and top health officials have been increasingly raising the alarm about inadequate supplies and the need for earlier and more reliable estimates of how much vaccine is on the way so that they can plan.
Biden's team held its first virus-related call with the nation's governors on Tuesday and pledged to provide states with firm vaccine allocations three weeks ahead of delivery.
Biden's announcement came a day after he grew more bullish about exceeding his vaccine pledge to deliver 100 million injections in his first 100 days in office, suggesting that a rate of 1.5 million doses per day could soon be achieved.
|Read the full story:|