Global disease experts say little is known about China's experience with long-term COVID effects thought to have afflicted millions with debilitating fatigue, brain fog and other symptoms
The United States is struggling to combat a wave of infections driven by the variant even as officials urge unvaccinated Americans to get the shots. Rising case loads have raised concerns as children return to school, rattled investors and upended many companies' return-to-office plans.
The official, speaking on condition of anonymity, said Biden "will lay out a six-pronged strategy ... working across the public and private sectors."
Nearly 650,000 people in the United States have died from COVID-19 since the pandemic began.