About one in 10 Americans -- nearly 32.9 million people --- have so far received at least a first dose of the two-part Covid-19 vaccines, data from the Centers for Disease Control and Prevention shows, and about 9.8 million people have been fully vaccinated.
And while US and state leaders are optimistic vaccinations will ramp up further in the coming months, several challenges remain, including supply shortages and equitable access -- which come as public health experts say the US is in a race against time as Covid-19 variants keep spreading across the country.
"We're in a situation, and we will be for a little while, of undersupply," said Andy Slavitt, the senior White House adviser for Covid-19 Response.
In Delaware, officials announced Tuesday the state was no longer expecting to open another phase of vaccine eligibility on March 1 as was planned due to an "extremely limited supply" of vaccines. In Kentucky, Gov. Andy Beshear said the state will receive more doses from the federal government and added, "it's not enough, but it's great."
"I wish we had 200,000 doses a week right now. We could allocate all of them," Beshear said.
But there is good news on the vaccine front: The Biden administration said Tuesday it was boosting weekly vaccine supply going to states, tribes and territories to 11 million doses, adding it was continuing to work with manufacturers to increase vaccine supply.
Several thousand retail pharmacies will also begin administering vaccines this week as part of a federal program, with both CVS and Walgreens saying vaccinations will kick off Friday in the participating stores.
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