People stand in line for free coronavirus testing this month at Bellevue Hospital in New York City. The daily number of new coronavirus cases reported in the U.S. has remained stubbornly high.

People stand on line for free COVID-19 anti-body testing at Bellevue Hospital on August 19, 2020 in New York. (Photo by Bryan R. Smith / AFP) (Photo by BRYAN R. SMITH/AFP via Getty Images)