Cheap and easy antigen tests that detect proteins of the new coronavirus (yellow) in samples from a person are coming, but they aren’t perfect.
By Robert F. ServiceScience's COVID-19 reporting is supported by the Pulitzer Center.After a painfully slow rollout of diagnostic testing for active coronavirus infections across the country, some 400,000 people a day in the United States may now receive such a test, estimates suggest.
Yet a few public health experts say sending people back to work and school safely and identifying new outbreaks before they spread out of control could require testing much of the U.S.
population of 330 million every day. Others suggest checking roughly 900,000 people per day would be enough.Either way, nearly all the