The U.S. death toll from COVID-19 has passed 500,000 - a number so staggering that a top health researcher says it is hard to imagine an American who hasn't lost a relative or doesn't know someone who died.
The U.S. death toll from COVID-19 has passed 500,000 - a number so staggering that a top health researcher says it is hard to imagine an American who hasn't lost a relative or doesn't know someone who died.