President Joe Biden speaks about the COVID-19 response and vaccinations, Tuesday, Dec. 21, 2021, in the State Dining Room of the White House in Washington. (AP Photo/Patrick Semansky)President Joe Biden speaks about the COVID-19 response and vaccinations, Tuesday, Dec. 21, 2021, in the State Dining Room of the White House in Washington. That’s nearly five times the half-billion tests Biden will deploy. ADVERTISEMENTCurrently, the U.S. can conduct about 600 million tests per month, with home tests accounting for about half, according to researchers from Arizona State University. The staffer, who was fully vaccinated and boosted, tested positive Monday, White House press secretary Jen Psaki said.
