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Biden Team Fears Virus Surge Imperils Vow to Curb Runaway Pandemic
President Joe Biden and first lady Jill Biden review the troops and prepare to depart the Capitol after being sworn in on Wednesday. Biden became 46th president of the United States. (Rod Lamkey/Pool/Getty Images)
The risk of explosive new strains, including a U.K. variant known as B.1.1.7, threatens to upend all of the incoming administration’s ambitious plans and promises, leaving Joe Biden at the end of his first 100 d
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